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A294706 Permutations of [n] avoiding {4321, 3412, 1234}. 0
1, 1, 2, 6, 21, 69, 162, 240, 199, 73 (list; graph; refs; listen; history; text; internal format)
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 1.

MAPLE

p := 73*x^9+199*x^8+240*x^7+162*x^6+69*x^5+21*x^4+6*x^3+2*x^2+x+1 ;

taylor(p, x=0, 40) ;

gfun[seriestolist](%) ;

CROSSREFS

Sequence in context: A245749 A001434 A119098 * A294707 A116842 A294708

Adjacent sequences:  A294703 A294704 A294705 * A294707 A294708 A294709

KEYWORD

nonn,easy,fini,full

AUTHOR

R. J. Mathar, Nov 07 2017

STATUS

approved

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Last modified August 12 12:23 EDT 2020. Contains 336439 sequences. (Running on oeis4.)