Search command:
class.x -di x -He EH300:MVNFL50

Result:
4 9  M:26 9 N:415 10 H:300,14 [572]
    1    0    0   -7    0  -23   -1   -3   -7
    0    1    0   -4    0  -15   -1   -2   -5
    0    0    1   -2    0   -6    0   -1   -2
    0    0    0    0    1   -1    1    1    1
4 9  M:27 9 N:411 9 H:300,14 [572]
    1    0    0   -3    0  -23   -1   -3   -7
    0    1    0   -1    0  -15   -1   -2   -5
    0    0    1   -1    0   -6    0   -1   -2
    0    0    0    0    1   -1    1    1    1
4 6  M:26 6 N:416 7 H:300,18 [564]
    1    0    0  -21    0  -23
    0    1    0  -14    0  -15
    0    0    1   -6    0   -6
    0    0    0    0    1   -1
4 7  M:30 7 N:412 7 H:300,18 [564]
   1   0   0 -21   0 -23 -12
   0   1   0 -14   0 -15  -8
   0   0   1  -6   0  -6  -4
   0   0   0   0   1  -1   1
4 7  M:29 7 N:413 8 H:300,18 [564]
    1    0    0  -21    0  -23   -9
    0    1    0  -14    0  -15   -6
    0    0    1   -6    0   -6   -3
    0    0    0    0    1   -1    1
4 7  M:28 7 N:414 8 H:300,18 [564]
    1    0    0  -21    0  -23   -6
    0    1    0  -14    0  -15   -4
    0    0    1   -6    0   -6   -2
    0    0    0    0    1   -1    1
4 7  M:27 7 N:415 8 H:300,18 [564]
    1    0    0  -21    0  -23   -3
    0    1    0  -14    0  -15   -2
    0    0    1   -6    0   -6   -1
    0    0    0    0    1   -1    1
4 8  M:33 8 N:411 8 H:300,18 [564]
    1    0    0    0  -23   -1   -7  -35
    0    1    0    0  -15   -1   -5  -23
    0    0    1    0   -6    0   -2  -10
    0    0    0    1   -1    1    1   -1
4 8  M:30 8 N:412 8 H:300,18 [564]
   1   0   0 -21   0 -23  -6 -29
   0   1   0 -14   0 -15  -4 -19
   0   0   1  -6   0  -6  -2  -8
   0   0   0   0   1  -1   1  -1
4 8  M:30 8 N:412 8 H:300,18 [564]
   1   0   0 -21   0 -23  -3 -32
   0   1   0 -14   0 -15  -2 -21
   0   0   1  -6   0  -6  -1  -9
   0   0   0   0   1  -1   1  -1
4 8  M:29 8 N:415 8 H:300,18 [564]
    1    0    0  -21    0  -23   -1   -7
    0    1    0  -14    0  -15   -1   -5
    0    0    1   -6    0   -6    0   -2
    0    0    0    0    1   -1    1    1
4 8  M:28 8 N:414 9 H:300,18 [564]
    1    0    0  -21    0  -23   -3  -26
    0    1    0  -14    0  -15   -2  -17
    0    0    1   -6    0   -6   -1   -7
    0    0    0    0    1   -1    1   -1
4 8  M:29 8 N:413 9 H:300,18 [564]
    1    0    0  -21    0  -23   -3  -29
    0    1    0  -14    0  -15   -2  -19
    0    0    1   -6    0   -6   -1   -8
    0    0    0    0    1   -1    1   -1
4 9  M:30 9 N:414 9 H:300,18 [564]
    1    0    0  -21    0  -23   -1  -26   -7
    0    1    0  -14    0  -15   -1  -17   -5
    0    0    1   -6    0   -6    0   -7   -2
    0    0    0    0    1   -1    1   -1    1
4 9  M:31 9 N:413 9 H:300,18 [564]
    1    0    0  -21    0  -23   -1  -29   -7
    0    1    0  -14    0  -15   -1  -19   -5
    0    0    1   -6    0   -6    0   -8   -2
    0    0    0    0    1   -1    1   -1    1
4 9  M:32 9 N:412 9 H:300,18 [564]
    1    0    0  -21    0  -23   -1   -7  -32
    0    1    0  -14    0  -15   -1   -5  -21
    0    0    1   -6    0   -6    0   -2   -9
    0    0    0    0    1   -1    1    1   -1
4 9  M:49 9 N:416 9 H:300,30 [540]
    1    0    0    0  -24   -3   -5   -9  -12
    0    1    0    0  -16   -2   -3   -6   -8
    0    0    1    0   -6   -2   -3   -5   -6
    0    0    0    1   -1    2    2    3    3
4 10  M:48 10 N:415 10 H:300,30 [540]
    1    0    0    0  -24   -1   -3   -5   -8  -15
    0    1    0    0  -16    0   -2   -3   -5  -10
    0    0    1    0   -6   -1   -2   -3   -4   -6
    0    0    0    1   -1    1    2    2    2    2
4 11  M:47 11 N:413 10 H:300,30 [540]
   1   0   0   0 -24  -1  -1  -5  -6  -8 -15
   0   1   0   0 -16   0  -1  -3  -4  -5 -10
   0   0   1   0  -7   0   0  -1  -1  -2  -4
   0   0   0   1  -1   1   1   2   2   2   2
4 8  M:54 8 N:415 8 H:300,34 [532]
    1    0    0    0  -50  -51  -77 -105
    0    1    0    0  -33  -34  -51  -70
    0    0    1    0  -14  -14  -22  -30
    0    0    0    1   -2   -2   -3   -4
#NF: 20
  done (0s)