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 A353705 #7 May 05 2022 15:07:18 %S A353705 1,2,3,4,4,6,7,8,8,9,10,10,12,14,14,14,15,16,16,18,20,20,20,22,24,24, %T A353705 24,24,28,28,28,30,30,30,30,30,36,36,36,36,40,40,40,42,44,44,44,45,46, %U A353705 46,48,48,48,48,52,54,54,54,56,58,58,58,60,62,62,62,64,66,66,66,66,70,70,70,70,72,72,72,76,78,78,78,80,80,80,80,84,84,84 %N A353705 The smallest unused number when A121216(n) is being calculated. %H A353705 Rémy Sigrist, <a href="/A353705/b353705.txt">Table of n, a(n) for n = 1..10000</a> %H A353705 Rémy Sigrist, <a href="/A353705/a353705.gp.txt">PARI program</a> %o A353705 (PARI) See Links section. %Y A353705 Cf. A121216. %K A353705 nonn %O A353705 1,2 %A A353705 _N. J. A. Sloane_, May 05 2022