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 A381659 #7 Mar 04 2025 07:33:01 %S A381659 1,4,11,21,31,69,93,96,174,222,263,433,529,633,671,732,1006,1298,1388, %T A381659 1519,1688,1813,2018,2220,2507,2788,3601,3949,4155,4498,4612,4792, %U A381659 5018,5476,5864,6165,6391,6611,8402,9173,9527,10388,10727,11379,11834,12045,12684,13116,13552,14038,14974,15340,15988,16301,16994,18426,19514,20372,21366,22953 %N A381659 Index where n first appears in A381658. %Y A381659 Cf. A381658, A381660, A092482, A381597, A229037. %K A381659 nonn %O A381659 1,2 %A A381659 _Scott R. Shannon_, Mar 04 2025