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 A348775 #7 Nov 07 2021 00:57:01 %S A348775 42,1321,2352,2924,77922,4822,2310,81212,19730,331637,340640,11158, %T A348775 13838,13690,14476,709992,17990,19518,20830,2277394,62350,82484,76962, %U A348775 84852,15407670,87388,90636,408240,14526794,7023466,272792,117864,293946,40034157,386674,168172,136472,40847194,729008,768646 %N A348775 A348773(2*n). %H A348775 N. J. A. Sloane, <a href="/A348775/b348775.txt">Table of n, a(n) for n = 1..614</a> %Y A348775 Cf. A307720, A307730, A307632, A348773, A348774. %K A348775 nonn %O A348775 1,1 %A A348775 _N. J. A. Sloane_, Nov 07 2021