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 A296346 #7 Dec 17 2017 10:18:06 %S A296346 0,2,4,5,11,10,15,9,13,18,19,28,23,26,35,32,27,31,33,46,39,40,42,58, %T A296346 49,47,65,50,68,67,53,59,60,62,64,73,84,71,72,76,88,81,75,78,89,108, %U A296346 80,115,90,91,122,100,105,95,101,139,133,107,109,148,119,149,114 %N A296346 Numbers in cells in spiral A274820 on spoke through center with slope 180 degrees. %C A296346 It is conjectured that this and A296343 together are a permutation of the nonnegative numbers. %H A296346 Rémy Sigrist, <a href="/A296346/b296346.txt">Table of n, a(n) for n = 0..2500</a> %H A296346 Rémy Sigrist, <a href="/A296346/a296346.gp.txt">PARI program for A296346</a> %o A296346 (PARI) See Links section. %Y A296346 Cf. A274820, A296343, A296344, A296345, A296347, A296348. %K A296346 nonn %O A296346 0,2 %A A296346 _N. J. A. Sloane_, Dec 16 2017 %E A296346 More terms from _Rémy Sigrist_, Dec 17 2017