i1 : S = K3(5,2,-2)
o1 = K3 surface with rank 2 lattice defined by the intersection matrix: | 8 2 |
| 2 -2 |
-- (1,0): K3 surface of genus 5 and degree 8 containing rational curve of degree 2
-- (2,0): K3 surface of genus 17 and degree 32 containing rational curve of degree 4
-- (2,1): K3 surface of genus 20 and degree 38 containing rational curve of degree 2 (cubic fourfold)
-- (3,0): K3 surface of genus 37 and degree 72 containing rational curve of degree 6
-- (3,1): K3 surface of genus 42 and degree 82 containing rational curve of degree 4 (GM fourfold)
o1 : Lattice-polarized K3 surface
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