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 A296305 #27 Jan 07 2018 12:39:40 %S A296305 7,11,17,17,23,29,31,37,31,43,43,53,53,61,59,53,71,79,79,71,71,71,79, %T A296305 89,89,89,97,107,97,107,127,127,109,113,127,127,127,137,137,163,149, %U A296305 131,139,157,163,149,167,163,173,173,157,163,179,193,197,173,211,211 %N A296305 Triangular array T(n, k) read by rows, n > 0, 0 < k <= n: T(n, k) = A297673(n, k) + A297673(n+1, k) + A297673(n+1, k+1). %C A296305 All terms are odd prime numbers. %H A296305 Rémy Sigrist, <a href="/A296305/b296305.txt">Rows n = 1..100, flattened</a> %H A296305 Rémy Sigrist, <a href="/A296305/a296305.gp.txt">PARI program for A296305</a> %e A296305 Triangle begins: %e A296305 1: 7 %e A296305 2: 11, 17 %e A296305 3: 17, 23, 29 %e A296305 4: 31, 37, 31, 43 %e A296305 5: 43, 53, 53, 61, 59 %e A296305 6: 53, 71, 79, 79, 71, 71 %e A296305 7: 71, 79, 89, 89, 89, 97, 107 %e A296305 8: 97, 107, 127, 127, 109, 113, 127, 127 %e A296305 9: 127, 137, 137, 163, 149, 131, 139, 157, 163 %e A296305 10: 149, 167, 163, 173, 173, 157, 163, 179, 193, 197 %o A296305 (PARI) See Links section. %Y A296305 Cf. A297673. %K A296305 nonn,tabl,easy %O A296305 1,1 %A A296305 _Rémy Sigrist_, Jan 03 2018