A269126 Number of sequences with n copies each of 1,2,...,8 avoiding the pattern 12...8.

1, 40319, 81537026047, 360953073372968159, 2179159866745975811590271, 15006398706095549205738572240519, 108710813295434106456771753677041770655, 798203800902002138190338074022806761037450631, 5841526335200139692050292842849347521755651331941759

Offset

0,2

Links

Alois P. Heinz, Table of n, a(n) for n = 0..60

Formula

a(n) = A071550(n) - A268844(n).

Crossrefs

Row n=8 of A269129.

Cf. A071550, A268844.

Sequence in context: A172863 A159720 A127228 * A168359 A090394 A250055

Adjacent sequences: A269123 A269124 A269125 * A269127 A269128 A269129

Keyword

nonn

Author

Alois P. Heinz, Feb 19 2016

Status

approved