A290714 Number of irredundant sets in the n X n bishop graph.
2, 9, 110, 2116, 59670, 2509056, 147357840, 12001640704, 1321710590682, 196996776086916
Offset: 1
Links
- Eric Weisstein's World of Mathematics, Bishop Graph
- Eric Weisstein's World of Mathematics, Irredundant Set
Formula
Extensions
a(5)-a(10) from Andrew Howroyd, Aug 19 2017