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 A146541 #16 Feb 04 2024 13:16:35 %S A146541 1,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536, %T A146541 131072,262144,524288,1048576,2097152,4194304,8388608,16777216, %U A146541 33554432,67108864,134217728,268435456,536870912,1073741824,2147483648,4294967296,8589934592 %N A146541 Binomial transform of A010688. %C A146541 Hankel transform is := 1,-48,0,0,0,0,0,0,0,... %H A146541 Colin Barker, <a href="/A146541/b146541.txt">Table of n, a(n) for n = 0..1000</a> %H A146541 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (2). %F A146541 a(0)=1, a(n) = 2^(n+2) for n>0. %F A146541 a(n) = Sum_{k, 0..n} A109466(n,k)*A146534(k). %F A146541 a(n) = A132479(n), n>1. - _R. J. Mathar_, Nov 02 2008 %F A146541 G.f.: (1+6*x) / (1-2*x). - _Colin Barker_, Mar 17 2016 %t A146541 Join[{1},2^Range[3,40]] (* _Harvey P. Dale_, Feb 28 2016 *) %o A146541 (PARI) Vec((1+6*x)/(1-2*x) + O(x^50)) \\ _Colin Barker_, Mar 17 2016 %Y A146541 Cf. A000007, A011782, A000079, A003945, A046055, A146523, A082505, A135092. %Y A146541 Essentially the same as A132479, A077552, A020707. %K A146541 nonn,easy %O A146541 0,2 %A A146541 _Philippe Deléham_, Oct 31 2008 %E A146541 Corrected and extended by _Harvey P. Dale_, Feb 28 2016