A186675 Total number of positive integers below 10^n requiring 15 positive biquadrates in their representation as sum of biquadrates.

0, 6, 66, 690, 6761, 66834, 666903, 6666972, 66667041, 666667102, 6666667173

Offset

1,2

Comments

A114322(n) + A186649(n) + A186651(n) + A186653(n) + A186655(n) + A186657(n) + A186659(n) + A186661(n) + A186663(n) + A186665(n) + A186667(n) + A186669(n) + A186671(n) + A186673(n) + a(n) + A186677(n) + A186680(n) + A186682(n) + A186684(n) = A002283(n)

Links

Table of n, a(n) for n=1..11.

Eric Weisstein's World of Mathematics, Waring's Problem.

Crossrefs

Cf. A046046, A186676.

Sequence in context: A227220 A119234 A119232 * A186673 A213453 A186671

Adjacent sequences: A186672 A186673 A186674 * A186676 A186677 A186678

Keyword

nonn,more

Author

Martin Renner, Feb 25 2011

Extensions

a(5)-a(6) from Lars Blomberg, May 08 2011

a(7) from Charles R Greathouse IV, May 08 2011

a(8)-a(9) from Hiroaki Yamanouchi, Oct 13 2014

a(10)-a(11) from Giovanni Resta, Apr 29 2016

Status

approved