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.

A145767 Numbers n such that n^2 = p^3 + q^3, p, q primes (p<=q).

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%I A145767 #4 Mar 30 2012 17:35:01
%S A145767 4,228,812340,4935504,13608420,14218512,25354032,29463060,48880608,
%T A145767 135516108,194057640,223078944,412662012,763311948,764539380,
%U A145767 1409359200,1998370272,3408412644,5397667572,7650577620,8224333236,9401817516
%N A145767 Numbers n such that n^2 = p^3 + q^3, p, q primes (p<=q).
%C A145767 a(23) > 10^10. [From _Donovan Johnson_, Nov 18 2009]
%F A145767 n^2=p^3+q^3, p, q primes (p<=q).
%e A145767 Corresponding values of p and q (p <= q) are: 2, 11, 2137, 8929, 1801, 44111, 6637, 57241, 16931, 151477, 54083, 3889; 2, 37, 8663, 28703, 56999, 48817, 86291, 87959, 133597, 246011, 334717, 367823.
%o A145767 (PARI) {n1 = 40000; for(ia= 1, n1,a3 = prime(ia)^3; for ( ib= ia, n1,b3 = prime(ib)^3; c = a3 + b3; if(issquare(c), print([c, a3, b3]))))}
%Y A145767 Cf. A086119 Numbers of the form p^3 + q^3, p, q primes.
%Y A145767 Cf. A145797, A145798. [From _Donovan Johnson_, Nov 18 2009]
%K A145767 nonn
%O A145767 1,1
%A A145767 _Zak Seidov_, Oct 18 2008
%E A145767 a(13)-a(22) from _Donovan Johnson_, Nov 18 2009