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 A132479 #16 Feb 21 2023 10:38:30 %S A132479 1,5,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536, %T A132479 131072,262144,524288,1048576,2097152,4194304,8388608,16777216, %U A132479 33554432,67108864,134217728,268435456,536870912,1073741824,2147483648,4294967296,8589934592 %N A132479 Row sums of triangle A132478. %H A132479 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (2). %F A132479 a(0) = 1, a(2) = 5, a(n) = 2^(n+2) for n > 1. %F A132479 G.f.: -(1 + 3*x + 6*x^2)/(-1 + 2*x). - _R. J. Mathar_, Nov 14 2007 %F A132479 E.g.f.: 4*exp(2*x) - 3*(1 + x). - _Stefano Spezia_, Feb 20 2023 %e A132479 a(3) = 32 = sum of row 3 terms of triangle A132478: (4 + 9 + 18 + 1). %e A132479 a(3) = 32 = 2^5. %Y A132479 Cf. A000079, A132478. %K A132479 nonn,easy %O A132479 0,2 %A A132479 _Gary W. Adamson_, Aug 23 2007 %E A132479 More terms from _Stefano Spezia_, Feb 20 2023