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 A178907 #8 Oct 20 2013 13:53:44 %S A178907 4,7,12,18,26,32,40,47,56,67,74,85,94,101,110,121,132,140,152,162,170, %T A178907 182,192,204,218,228,236,246,254,264,284,294,306,314,330,338,350,362, %U A178907 372,384,396,405,422,431,442,451,470,489,500,509,520,533,542,559,572,585,598,607,620,631,640,657,678 %N A178907 n-th prime + n-th problime (third definition). %C A178907 The partial sequence of values which are themselves primes begins: 7, 47, 101. The partial sequence of values which are themselves problimes (third definition) begins: 4, 7, 85, 121. %F A178907 a(n) = A000040(n) + A003068(n). %e A178907 a(10) = prime(10) + A003068(10) = 29 + 38 = 67 is prime. %Y A178907 Cf. A000040, A003068, A100484. %K A178907 nonn %O A178907 1,1 %A A178907 _Jonathan Vos Post_, Dec 29 2010 %E A178907 Corrected and extended. - _R. J. Mathar_, Oct 20 2013