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 A260895 #7 Aug 04 2015 03:06:18 %S A260895 1,2,2,3,2,6,2,5,4,7,4,10,3,8,8,9,4,13,4,11,8,11,6,15,7,13,10,15,7,24, %T A260895 7,13,12,16,12,23,9,18,14,22,10,29,9,20,17,20,9,28,12,25,17,23,12,31, %U A260895 15,26,18,24,13,44,12,24,21,25,18,43,13,28,21,39,14 %N A260895 Number of primes in n-th row of triangle A077664. %C A260895 a(n) = sum(A010051(A077664(n,k)): k = 1..n). %H A260895 Reinhard Zumkeller, <a href="/A260895/b260895.txt">Table of n, a(n) for n = 1..1000</a> %o A260895 (Haskell) %o A260895 a260895 = sum . map a010051' . a077664_row %Y A260895 Cf. A077664, A010051. %K A260895 nonn %O A260895 1,2 %A A260895 _Reinhard Zumkeller_, Aug 03 2015