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 A297192 #6 Jan 19 2018 01:41:21 %S A297192 1,1,3,1,7,13,1,11,41,63,1,15,85,231,321,1,19,145,575,1289,1683,1,23, %T A297192 221,1159,3649,7183,8989,1,27,313,2047,8361,22363,40081,48639,1,31, %U A297192 421,3303,16641,56695,134245,224143,265729,1,35,545,4991,29961,124515,369305 %N A297192 Left-hand half of triangle A297191. %H A297192 Rémy Sigrist, <a href="/A297192/b297192.txt">Rows n = 0..100 of triangle, flattened</a> %H A297192 Rémy Sigrist, <a href="/A297192/a297192.gp.txt">PARI program for A297192</a> %o A297192 (PARI) See Links section. %Y A297192 Cf. A008288, A297191. %K A297192 nonn,tabl,easy %O A297192 0,3 %A A297192 _N. J. A. Sloane_, Jan 10 2018 %E A297192 More terms from _Rémy Sigrist_, Jan 19 2018