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 A138035 #10 Feb 01 2022 07:11:26 %S A138035 1,1,3,7,13,21,35,71,169,409,931,1959,3829,7021,12203,20351,33233, %T A138035 55217,99043,201895,465501,1147717,2857075,6941815,16228985,36368201, %U A138035 78183171,161651143,322440517,622370973 %N A138035 Binomial transform of A135416. %C A138035 (Note that this uses an incorrect offset of 0 for A135416. - _R. J. Mathar_, Apr 04 2012) %F A138035 A007318 * A135416 as a vector, where A135416 = (1, 0, 2, 0, 0, 0, 4, 0, ...) %e A138035 a(4) = 7 = (1, 3, 3, 1) dot (1, 0, 2, 0) = (1 + 0 + 6 + 0). %Y A138035 Cf. A007318, A135416. %K A138035 nonn %O A138035 0,3 %A A138035 _Gary W. Adamson_, Mar 01 2008