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 A109755 #5 Aug 28 2013 13:23:54 %S A109755 1,3,9,21,51,117,251,523,1077,2207,4521,9283 %N A109755 Row and column sums of A001223 ( Differences between consecutive primes - see example ). %C A109755 Resembles the first 6 entries of sequence A005254 (number of weighted voting procedures). %e A109755 Column A - Primes (for reference) %e A109755 Column B - Distance between consecutive primes %e A109755 A B %e A109755 2 1 %e A109755 3 2 3 %e A109755 5 2 %e A109755 7 4 6 9 %e A109755 11 2 %e A109755 13 4 6 %e A109755 17 2 %e A109755 19 4 6 12 21 %e A109755 23 6 %e A109755 29 2 8 %e A109755 31 6 %e A109755 37 4 10 18 30 51 %e A109755 41 2 %e A109755 43 4 6 %e A109755 47 6 %e A109755 53 6 12 18 36 66 117 %e A109755 59 2 %e A109755 61 6 8 %e A109755 67 4 %e A109755 71 2 6 14 32 68 134 251 %Y A109755 Cf. A001223, A037254, A005254. %K A109755 nonn,uned,obsc,less %O A109755 0,2 %A A109755 _E.J.P. Vening_, Aug 11 2005