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 A026307 #9 Jun 26 2022 20:17:55 %S A026307 1,1,2,3,9,14,44,70,230,369,1242,2002,6853,11076,38376,62127,217242, %T A026307 352070,1239980,2010998,7123765,11559030,41141916,66780155,238637282, %U A026307 387444085,1389206210,2255875650,8112107475,13174629240,47495492400 %N A026307 a(n) = T(n,[ n/2 ]), where T is the array in A026300. %Y A026307 Cf. A026300. %K A026307 nonn %O A026307 0,3 %A A026307 _Clark Kimberling_ %E A026307 The last term was obviously incorrect and has now been deleted. - _N. J. A. Sloane_, Oct 29 2006