A242845 - OEIS

%I #7 May 24 2014 18:48:57

%S 120,360,960,2400,5364,11520,23904,48000,94308,181824,344832,643104,

%T 1186224,2169048,3928932,7096092,12764310,22970448,41423646,75112044,

%U 137278356,253642356,474883278,902578368,1743300754,3421941228,6820887514,13784976732,28189089684

%N Number of compositions of n with difference 5 between the number of odd parts and the number of even parts, both counted without multiplicity.

%C First odd term is a(83) = 81415078620107974921.

%H Alois P. Heinz, <a href="/A242845/b242845.txt">Table of n, a(n) for n = 25..500</a>

%e a(25) = 120 = 5!: all permutations of {1,3,5,7,9}.

%Y Column k=5 of A242626.

%K nonn

%O 25,1

%A _Alois P. Heinz_, May 23 2014