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 A234019 #5 Jan 16 2014 15:02:30 %S A234019 0,-1,0,1,2,4,6,19,38,67,127,234,419,745,1378,2678,5311,10470,20333 %N A234019 Maximum values occurring in each row of A233270: a(n) = A233270(A233268(n) - A234020(n)). %C A234019 Please see the graph of A233270. %F A234019 a(n) = A233270(A233268(n) - A234020(n)). %o A234019 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A234019 (define (A234019 n) (A233270 (- (A233268 n) (A234020 n)))) %o A234019 ;; Alternative version: %o A234019 (define (A234019v2 n) (A233270 (A234019pos (- n 1)))) %o A234019 (define A234019pos (RECORD-ABSVALS-BETWEEN-ZEROS-POS 0 A233270 A213710)) %Y A234019 Cf. A233268, A233270, A234018, A234020. %K A234019 sign %O A234019 1,5 %A A234019 _Antti Karttunen_, Dec 29 2013