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 A276615 #5 Sep 08 2016 17:53:56 %S A276615 0,7,7,7,5,7,7,7,5,7,4,7,7,7,5,7,7,7,5,9,7,7,7,5,7,7,7,5,7,4,7,7,7,7, %T A276615 7,7,7,5,7,7,7,5,7,4,7,7,7,5,7,7,12,9,3,7,7,7,5,7,7,7,5,7,4,7,7,7,5,7, %U A276615 7,12,9,7,7,7,5,7,7,5,7,7,7,5,7,7,7,5,7,4,7,7,7,5,7,7,12,9,7,7,7,5,7,7,12,11,7,7,7,7,2 %N A276615 After a(0)=0, the first differences of A276613. %H A276615 Antti Karttunen, <a href="/A276615/b276615.txt">Table of n, a(n) for n = 0..10236</a> %F A276615 a(n) = A055401(A276613(n)). %F A276615 a(0) = 0; for n >= 1, a(n) = A276613(n) - A276613(n-1). %o A276615 (Scheme, two alternatives) %o A276615 (define (A276615 n) (A055401 (A276613 n))) %o A276615 (define (A276615 n) (if (zero? n) n (- (A276613 n) (A276613 (- n 1))))) %Y A276615 Cf. A055401, A276613. %K A276615 nonn %O A276615 0,2 %A A276615 _Antti Karttunen_, Sep 07 2016