A086266 Triangle of counts of s-clusters in n X n (0,1)-matrices for s=0, 1, ....
1, 1, 1, 13, 2, 1, 218, 208, 78, 6, 1, 1, 11506, 21172, 20262, 9560, 2593, 408, 32, 2
Offset: 1
Examples
Triangle begins: 1, 1; 1, 13, 2; 1, 218, 208, 78, 6, 1; 1, 11506, 21172, 20262, 9560, 2593, 408, 32, 2; ...
Links
- Eric Weisstein's World of Mathematics, s-Cluster
Crossrefs
Cf. A086265.