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 A332699 #4 Feb 25 2020 18:35:04 %S A332699 0,2,3,7,8,9,16,17,18,19,30,31,32,33,34,50,51,52,53,54,55,77,78,79,80, %T A332699 81,82,83,112,113,114,115,116,117,118,119,156,157,158,159,160,161,162, %U A332699 163,164,210,211,212,213,214,215,216,217,218,219,275,276,277,278 %N A332699 First row of A332662, also main diagonal of A332667. %p A332699 a := n -> A332667(n, n): seq(a(n), n=0..58); %Y A332699 Cf. A332667, A332662. %K A332699 nonn %O A332699 0,2 %A A332699 _Peter Luschny_, Feb 25 2020