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 A309269 #10 Jun 22 2025 06:32:59
%S A309269 3,5,7,9,12,15,17,20,24,29,33,36,42,48,52,56,60,63,69,78,84,90,96,102,
%T A309269 112,120,125,131,138,144,152,160,164,172,186,198,204,210,216,222,234,
%U A309269 246,252,255,259,268,276,288,300,308,320,330,336,342,352,360,372,384,390,396
%N A309269 Numbers that are the sum of two successive prime powers.
%H A309269 Amiram Eldar, <a href="/A309269/b309269.txt">Table of n, a(n) for n = 1..10000</a>
%F A309269 a(n) = A000961(n) + A000961(n+1).
%t A309269 Join[{3}, Total /@ Partition[Select[Range[200], PrimePowerQ], 2, 1]]
%Y A309269 Cf. A000961, A001043, A024918, A057820.
%K A309269 nonn
%O A309269 1,1
%A A309269 _Ilya Gutkovskiy_, Jul 20 2019