This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A242845 #7 May 24 2014 18:48:57
%S A242845 120,360,960,2400,5364,11520,23904,48000,94308,181824,344832,643104,
%T A242845 1186224,2169048,3928932,7096092,12764310,22970448,41423646,75112044,
%U A242845 137278356,253642356,474883278,902578368,1743300754,3421941228,6820887514,13784976732,28189089684
%N A242845 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 A242845 First odd term is a(83) = 81415078620107974921.
%H A242845 Alois P. Heinz, <a href="/A242845/b242845.txt">Table of n, a(n) for n = 25..500</a>
%e A242845 a(25) = 120 = 5!: all permutations of {1,3,5,7,9}.
%Y A242845 Column k=5 of A242626.
%K A242845 nonn
%O A242845 25,1
%A A242845 _Alois P. Heinz_, May 23 2014