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 A354812 #7 Jun 09 2022 08:44:57 %S A354812 132,156,204,228,276,348,372,444,492,516,564,636,708,732,804,852,876, %T A354812 948,996,1068,1164,1212,1236,1284,1308,1356,1524,1572,1644,1668,1788, %U A354812 1812,1884,1956,2004,2076,2148,2172,2292,2316,2364,2388,2532,2676,2724,2748,2796,2868,2892,3012,3084,3156,3228,3252,3324,3372 %N A354812 Positions of +2's in A346242. %C A354812 Question: Are all terms even? %o A354812 (PARI) isA354812(n) = (2==A346242(n)); %Y A354812 Cf. A346242. %Y A354812 Cf. also A354814, A354822. %K A354812 nonn %O A354812 1,1 %A A354812 _Antti Karttunen_, Jun 07 2022