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 A234020 #8 Jan 16 2014 15:02:42 %S A234020 0,0,0,0,1,1,3,0,5,0,0,33,72,140,267,502,954,1771,3355 %N A234020 Offsets from the middle point of each row of A233270 to the nearest point containing a maximum value of that range. %C A234020 Please see the graph of A233270. Iff a(n)=0, A234018(n) = A234019(n). %C A234020 Seems to grow faster than A233274. Is the ratio a(n)/A233274(n) converging to some limit? %o A234020 (Scheme) %o A234020 (define (A234020 n) (let ((middle (A233268 n))) (let loop ((i middle) (m 0) (maxp middle)) (cond ((zero? (A233270 i)) (- middle maxp)) ((> (abs (A233270 i)) m) (loop (- i 1) (abs (A233270 i)) i)) (else (loop (- i 1) m maxp)))))) %Y A234020 Cf. A233268, A233270, A234018, A234019, A233274. %K A234020 nonn %O A234020 1,7 %A A234020 _Antti Karttunen_, Dec 29 2013