A294753 Number of permutations of [n] avoiding {4321, 1423, 1234}.

1, 1, 2, 6, 21, 72, 198, 367, 359, 147

Offset

0,3

Links

Table of n, a(n) for n=0..9.

D. Callan, T. Mansour, Enumeration of small Wilf classes avoiding 1324 and two other 4-letter patterns, arXiv:1705.00933 [math.CO] (2017), Table 2 No 38.

Crossrefs

Sequence in context: A116785 A116801 A148486 * A294754 A116750 A116791

Adjacent sequences: A294750 A294751 A294752 * A294754 A294755 A294756

Keyword

nonn,easy,fini,full

Author

R. J. Mathar, Nov 08 2017

Status

approved