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%I #10 Jul 07 2018 01:50:01
%S 6,21,36,51,66,86,96,101,116,131,146,161,166,181,196,211,226,246,261,
%T 276,291,306,321,326,336,341,356,371,386,401,406,421,436,451,466,486,
%U 501,516,531,546,561,576,581,596,611,630,645,660,661,676,691,705,710
%N Numbers that are the sum of 6 but no fewer nonzero fourth powers.
%H David A. Corneth, <a href="/A047717/b047717.txt">Table of n, a(n) for n = 1..26675</a> (terms <= 200000)
%o (PARI) upto(n)={my(e=6); my(s=sum(k=1, sqrtint(sqrtint(n)), x^(k^4)) + O(x*x^n)); my(p=s^e, q=(1 + s)^(e-1)); select(k->polcoeff(p,k) && !polcoeff(q,k), [1..n])} \\ _Andrew Howroyd_, Jul 06 2018
%Y Cf. A000583, A002377, A003340.
%K nonn
%O 1,1
%A Arlin Anderson (starship1(AT)gmail.com)
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