A186651 Total number of positive integers below 10^n requiring 3 positive biquadrates in their representation as sum of biquadrates.

1, 6, 29, 141, 789, 4353, 24173, 134679, 756947, 4258210, 23958106

Offset

1,2

Comments

A114322(n) + A186649(n) + a(n) + A186653(n) + A186655(n) + A186657(n) + A186659(n) + A186661(n) + A186663(n) + A186665(n) + A186667(n) + A186669(n) + A186671(n) + A186673(n) + A186675(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. A003337.

Cf. A002283, A114322, A186649, A186653, A186655, A186657, A186659, A186661, A186663, A186665, A186667, A186669, A186671, A186673, A186675, A186677, A186680, A186682, A186684.

Sequence in context: A009153 A012325 A125785 * A292034 A108982 A059724

Adjacent sequences: A186648 A186649 A186650 * A186652 A186653 A186654

Keyword

nonn,more

Author

Martin Renner, Feb 25 2011

Extensions

a(5)-a(11) from Lars Blomberg, May 08 2011

Status

approved