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 A294427 #21 Aug 02 2025 18:12:02 %S A294427 1,3,5,9,11,13,15,19,22,25,27,29,31,35,37,39,41,45,48,51,53,56,58,60, %T A294427 63,66,70,72,74,76,78,82,84,86,89,92,96,98,100,102,105,107,110,113, %U A294427 116,118,120,123,127,130,132,134,136,140,142,144,148,150,152,155 %N A294427 Terms of A065188 that are on or above the main diagonal. %C A294427 This gives another way to view A275884. In fact, a(n) = A065188(A275884(n)). %H A294427 N. J. A. Sloane, <a href="/A294427/b294427.txt">Table of n, a(n) for n = 1..30800</a> %Y A294427 Cf. A065188, A275884, A294428. %K A294427 nonn %O A294427 1,2 %A A294427 _N. J. A. Sloane_, Nov 06 2017, based on an email from _Don Knuth_, Oct 31 2017