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 A290461 #10 Aug 09 2017 07:45:22 %S A290461 0,0,0,0,0,0,0,0,2,10,30,50,88,126,176,256,374,492,651,810,1013,1285, %T A290461 1605,1925,2327,2794,3315,3921,4627,5333,6215,7097,8093,9210,10411, %U A290461 11763,13392,15021,16748,18649,20833,23017,25480,27943,30634,33656,36806,39956,43478,47215,51266,55565,60168 %N A290461 Binomial(n,4) - A290447(n). %C A290461 Binomial(n,4) is an upper bound on A290447. No formula or recurrence is known for the latter, but perhaps the differences will turn out to be simpler to analyze. %H A290461 N. J. A. Sloane, <a href="/A290461/b290461.txt">Table of n, a(n) for n = 1..500</a> [Based on David Applegate's b-file for A290447] %Y A290461 Cf. A000332, A290447. %K A290461 nonn %O A290461 1,9 %A A290461 _N. J. A. Sloane_, Aug 07 2017