A181380 Total number of n-digit numbers requiring 4 positive cubes in their representation as sum of cubes.

1, 17, 224, 3101, 43340, 558806, 6615757, 73663693, 784419159

Offset: 1

Author

Martin Renner, Jan 28 2011

Keywords

• nonn
• base
• more

Comments

A181354(n) + A181376(n) + A181378(n) + a(n) + A181384(n) + A181401(n) + A181403(n) + A181405(n) + A171386(n) = A052268(n).

Links

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

Crossrefs

Cf. A047703, A181379.

Cf. A052268, A181354, A181376, A181378, A181384, A181401, A181403, A181405, A171386.

Formula

a(n) = A181379(n) - A181379(n-1).

Extensions

a(5)-a(9) from Lars Blomberg, Jan 15 2014