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 A381599 #6 Mar 01 2025 22:48:30 %S A381599 1,4,17,39,68,124,191,286,441,577,776,1043,1192,1556,1736,2214,2744, %T A381599 3221,3519,4248,5028,5542,6574,7013,8093,8945,10110,11043,12413,13223, %U A381599 14476,15923,17430,18617,20027,21991,24016,25364,27414,29356,31392,32614,35743,37888,40301,42620,45696,47776,51109,53264,56429,58471,61676,64468,69437,72011,75626 %N A381599 Index where n first appears in A381597. %Y A381599 Cf. A381597, A381598, A370708, A281511, A229037. %K A381599 nonn %O A381599 1,2 %A A381599 _Scott R. Shannon_, Mar 01 2025