

A153761


Number of degreen permutations of order exactly 11.


3



0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3628800, 43545600, 283046400, 1320883200, 4953312000, 15850598400, 44910028800, 115482931200, 274271961600, 609493248000, 1279935820800, 4644633666390681600, 106826520356358566400, 1281918194457262387200, 10682651561168805120000
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,11


LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..200


FORMULA

E.g.f.: exp(x)+exp(x+1/11*x^11).  Alois P. Heinz, Feb 16 2013


MAPLE

a:= proc(n) option remember;
`if`(n<11, 0, a(n1)+(1+a(n11))*(n1)!/(n11)!)
end:
seq(a(n), n=1..30); # Alois P. Heinz, Feb 16 2013


MATHEMATICA

Rest[CoefficientList[Series[Exp[x] + Exp[x + 1/11*x^11], {x, 0, 25}], x]*Range[0, 25]!] (* G. C. Greubel, Aug 27 2016 *)


CROSSREFS

Column k=11 of A057731.  Alois P. Heinz, Feb 16 2013
Sequence in context: A226889 A284207 A061603 * A133132 A228913 A179065
Adjacent sequences: A153758 A153759 A153760 * A153762 A153763 A153764


KEYWORD

nonn


AUTHOR

Franz Vrabec, Jan 01 2009


EXTENSIONS

More terms from Alois P. Heinz, Feb 16 2013


STATUS

approved



