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 A172982 #2 Mar 30 2012 18:40:50 %S A172982 2,5,10,17,28,47,88,149,238,647,1096,1595,2476,3467,9936,16885,25886, %T A172982 34935,44584,54533,115182,781831,1728500,61728549,127728598,194328647 %N A172982 Partial sums of minimal set of prime-strings in base 10 (A071062). %C A172982 The subsequence of primes is: 2, 5, 47, 149, 647, 3467, of which only 2 and 5 are in the original sequence. %e A172982 a(26) = 194328647 = 2 + 3 + 5 + 7 + 11 + 19 + 41 + 61 + 89 + 409 + 449 + 499 + 881 + 991 + 6469 + 6949 + 9001 + 9049 + 9649 + 9949 + 60649 + 666649 + 946669 + 60000049 + 66000049 + 66600049. %Y A172982 Cf. A000040, A071062, A071070, A071071, A071072, A071073. %K A172982 base,fini,full,nonn %O A172982 1,1 %A A172982 _Jonathan Vos Post_, Feb 06 2010