A181380 - OEIS

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A181380

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

8

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..9.

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

FORMULA

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

CROSSREFS

Cf. A047703, A181379.

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

Sequence in context: A016174 A016281 A160398 * A081044 A016227 A155001

Adjacent sequences: A181377 A181378 A181379 * A181381 A181382 A181383

KEYWORD

nonn,base,more

AUTHOR

Martin Renner, Jan 28 2011

EXTENSIONS

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

STATUS

approved