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 A296344 #9 Dec 17 2017 10:11:37 %S A296344 0,2,4,5,7,9,16,11,13,15,20,19,22,21,34,27,28,32,45,35,33,44,42,53,43, %T A296344 49,60,65,50,51,57,58,55,83,62,64,88,70,67,71,97,76,79,78,81,112,87, %U A296344 111,91,89,92,96,130,98,134,101,105,140,142,104,108,146,152 %N A296344 Numbers in cells in spiral A274820 on spoke through center with slope 60 degrees. %C A296344 It is conjectured that this and A296347 together are a permutation of the nonnegative numbers. %H A296344 Rémy Sigrist, <a href="/A296344/b296344.txt">Table of n, a(n) for n = 0..2500</a> %H A296344 Rémy Sigrist, <a href="/A296344/a296344.gp.txt">PARI program for A296344</a> %o A296344 (PARI) See Links section. %Y A296344 Cf. A274820, A296343, A296345, A296346, A296347, A296348. %K A296344 nonn %O A296344 0,2 %A A296344 _N. J. A. Sloane_, Dec 12 2017 %E A296344 More terms from _Rémy Sigrist_, Dec 17 2017