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 A348046 #8 Oct 14 2021 11:08:26 %S A348046 5,8,9,10,12,14,15,26,38,62,86,122,146,206,218,278,302,362,386,398, %T A348046 458,482,542,566,626,698,842,866,926,1046,1142,1202,1238,1286,1322, %U A348046 1622,1646,1658,1718,1766,2042,2066,2102,2126,2186,2306,2462,2558,2582,2606,2642,2858,2906,2966,2978,3218,3242,3338,3398,3446 %N A348046 Positions of 2's in A348045. %C A348046 The only odd terms in this sequence are 5, 9 and 15. %o A348046 (PARI) isA348046(n) = (2==A348045(n)); %Y A348046 Cf. A176810 (subsequence), A348045. %K A348046 nonn %O A348046 1,1 %A A348046 _Antti Karttunen_, Oct 12 2021