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 A169632 #15 Oct 08 2022 08:32:49
%S A169632 0,6,2,20,12,22,10,24,8,62,42,18,42,16,44,14,46,78,114,78,38,80,36,82,
%T A169632 34,84,32,86,30,88,28,90,26,224,156,226,154,228,152,74,154,72,156,70,
%U A169632 158,68,160,66,162,64,164,264,368,262,370,40,152,494,378,258,138,260
%N A169632 The even terms in Recamán's sequence (A005132).
%H A169632 <a href="/index/Rea#Recaman">Index entries for sequences related to Recamán's sequence</a>
%F A169632 a(2*n+b) = A005132(4*n+3+b), for b = {0,1}. - _Thomas Scheuerle_, Oct 06 2022
%Y A169632 Cf. A005132, A169633 (odd).
%K A169632 nonn
%O A169632 1,2
%A A169632 _Eric Desbiaux_, Mar 15 2010
%E A169632 More terms from _R. J. Mathar_, Oct 09 2010