A269114 Number of sequences with 4 copies each of 1,2,...,n avoiding the pattern 12...n.

0, 0, 1, 3199, 16140983, 142951955371, 2169397142273171, 54391509124298646609, 2179159866745975811590271, 135383475007869462606521105767, 12672963300072129619006691134123819, 1737368296284036324230735297513232295869

Offset

0,4

Links

Alois P. Heinz, Table of n, a(n) for n = 0..100

Formula

a(n) = A014608(n) - A268847(n).

Crossrefs

Column k=4 of A269129.

Cf. A014608, A268847.

Sequence in context: A235786 A235781 A235562 * A035896 A224646 A231203

Adjacent sequences: A269111 A269112 A269113 * A269115 A269116 A269117

Keyword

nonn

Author

Alois P. Heinz, Feb 19 2016

Status

approved