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 A257682 #12 May 30 2016 18:23:45 %S A257682 0,1,2,3,3,4,5,6,7,8,9,10,10,11,12,13,13,14,14,15,16,17,17,18,19,20, %T A257682 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,42, %U A257682 43,44,45,45,46,47,48,49,50,51,52,52,53,54,55,55,56,56,57,58,59,59,60,60,61 %N A257682 Partial sums of A257680: a(0) = 0; for n >= 1, a(n) = A257680(n) + a(n-1). %H A257682 Antti Karttunen, <a href="/A257682/b257682.txt">Table of n, a(n) for n = 0..10080</a> %F A257682 a(0) = 0; for n >= 1, a(n) = A257680(n) + a(n-1). %F A257682 Other identities: %F A257682 a(n) = A273662(n)+1. %o A257682 (Scheme, with memoization-macro definec) %o A257682 (definec (A257682 n) (if (zero? n) n (+ (A257680 n) (A257682 (- n 1))))) %Y A257682 Cf. A257680, A257681. %Y A257682 One more than A273662. %K A257682 nonn %O A257682 0,3 %A A257682 _Antti Karttunen_, May 04 2015 %E A257682 Description edited because of the changed starting offset of A256450 - _Antti Karttunen_, May 30 2016