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A086266
Triangle of counts of s-clusters in n X n (0,1)-matrices for s=0, 1, ....
0
1, 1, 1, 13, 2, 1, 218, 208, 78, 6, 1, 1, 11506, 21172, 20262, 9560, 2593, 408, 32, 2
OFFSET
1,4
LINKS
Eric Weisstein's World of Mathematics, s-Cluster
EXAMPLE
Triangle begins:
1, 1;
1, 13, 2;
1, 218, 208, 78, 6, 1;
1, 11506, 21172, 20262, 9560, 2593, 408, 32, 2;
...
CROSSREFS
Cf. A086265.
Sequence in context: A281092 A010223 A010222 * A217436 A040166 A100395
KEYWORD
nonn,tabf,more
AUTHOR
Eric W. Weisstein, Jul 14 2003
STATUS
approved