A100094 a(n) = A100092(n^2+n+1).

1, 2, 4, 11, 28, 65, 147, 321, 678, 1382, 2738, 5289, 9985, 18452, 33455, 59616, 104556, 180690, 308058, 518648, 863037, 1420480, 2314170, 3734063, 5970888, 9466452, 14887746, 23235296, 36000876, 55395893, 84680624, 128636339, 194239572

Offset

0,2

Links

Table of n, a(n) for n=0..32.

S. Kurz, Counting polyominoes with minimum perimeter, submitted to Ars Combinatoria

Crossrefs

Cf. A100092, A100093.

Sequence in context: A205504 A290337 A099412 * A099525 A024742 A024962

Adjacent sequences: A100091 A100092 A100093 * A100095 A100096 A100097

Keyword

nonn

Author

Sascha Kurz, Nov 03 2004

Extensions

a(0) prepended by Jianing Song, Aug 10 2021

Status

approved