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A294766 revision #3

A294766
Permutations of [n] avoiding {4312, 1432, 1234}.
1
1, 1, 2, 6, 21, 74, 248, 784, 2355, 6785, 18897, 51177, 135358, 350788, 893038, 2237998, 5530485, 13496371, 32566359, 77785039, 184083080, 432004206, 1006097772, 2326777196, 5346673751, 12213795349, 27749494413, 62729986469, 141146690370, 316216935240, 705582559642
OFFSET
0,3
LINKS
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 119
MAPLE
(-350*x^4-63*x^2+419*x^5-26*x^8+138*x^7-317*x^6+188*x^3+x^9-1+12*x)/((2*x-1)^4*(x-1)^5) ;
taylor(%, x=0, 40) ;
gfun[seriestolist](%) ;
CROSSREFS
Sequence in context: A116745 A116831 A294698 * A116752 A294767 A116827
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Nov 08 2017
STATUS
editing