cp's OEIS Frontend

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.

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).

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%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