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A011791 Number of directed animals on a certain lattice. 1
1, 2, 8, 35, 169, 862, 4575, 24999, 139700, 794684, 4586377, 26788423, 158054285, 940603900 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
Table of n, a(n) for n=0..13.
S. Ramanujan, Notebook entry
CROSSREFS
Cf. A259757.
Sequence in context: A303070 A129580 A007034 * A259757 A371826 A347953
Adjacent sequences: A011788 A011789 A011790 * A011792 A011793 A011794
KEYWORD
nonn
AUTHOR
Alain Denise (Alain.Denise(AT)lri.fr)
STATUS
approved

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Last modified June 6 19:21 EDT 2024. Contains 373134 sequences. (Running on oeis4.)