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 A211317 #8 Jul 03 2025 01:15:53 %S A211317 0,1,2,2,3,4,4,6,6,6,7,8,10,9,10,10,12,14,12,13,14,14,18,16,16,18,18, %T A211317 22,19,20,20,21,26,22,24,24,24,30,28,26,27,28,34,30,30,30,31,38,32,36, %U A211317 34,34,42,36,36,37,38,46,39,42,44,42,50,42,43,44,44,54,46,46,48,52,58,49,50 %N A211317 a(n) = A211316(2n+1). %C A211317 Considering only the odd-indexed terms of A211316 is motivated by the fact that A211316(2n) = n, so the idea is to skip these "uninteresting" terms. - _M. F. Hasler_, Jun 30 2025 %o A211317 (PARI) apply( A211317(n)=A211316(2*n+1), [0..88]) \\ _M. F. Hasler_, Jun 30 2025 %Y A211317 Cf. A211316. %K A211317 nonn,more %O A211317 0,3 %A A211317 _N. J. A. Sloane_, Apr 24 2012 %E A211317 Extended to a(0) = 0 and more terms from _M. F. Hasler_, Jun 30 2025