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A242836 Number of compositions of n with difference -5 between the number of odd parts and the number of even parts, both counted without multiplicity. 2
120, 0, 480, 0, 1800, 0, 5580, 0, 16224, 0, 43884, 0, 111828, 5040, 295752, 90720, 918144, 836640, 3717552, 5937840, 18033888, 36198000, 92552004, 199157040, 468066444, 1018608720, 2283162630, 4928557200, 10715965290, 22825049040, 48562957800, 102021279960 (list; graph; refs; listen; history; text; internal format)
OFFSET

30,1

COMMENTS

First odd term is a(114) = 348277353263626685406276711.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 30..500

EXAMPLE

a(30) = 120 = 5!: all permutations of {2,4,6,8,10}.

CROSSREFS

Column k=-5 of A242626.

Sequence in context: A267335 A156415 A073836 * A229031 A221406 A267428

Adjacent sequences:  A242833 A242834 A242835 * A242837 A242838 A242839

KEYWORD

nonn

AUTHOR

Alois P. Heinz, May 23 2014

STATUS

approved

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Last modified April 8 02:27 EDT 2020. Contains 333312 sequences. (Running on oeis4.)