A139211 Partial sums of A003325.

2, 11, 27, 55, 90, 144, 209, 281, 372, 498, 626, 759, 911, 1100, 1317, 1541, 1784, 2034, 2314, 2655, 2999, 3350, 3720, 4127, 4559, 5027, 5540, 6060, 6599, 7158, 7734, 8371, 9057, 9785, 10515, 11252, 12008, 12801, 13655, 14510, 15455, 16456, 17464, 18488

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Example

a(15) = 2 + 9 + 16 + 28 + 35 + 54 + 65 + 72 + 91 + 126 + 128 + 133 + 152 + 189 + 217 = 1317.

Mathematica

Accumulate[With[{upto=2000}, Select[Total/@Tuples[Range[Ceiling[Surd[ upto, 3]]]^3, 2], #<=upto&]]//Union] (* Harvey P. Dale, Apr 27 2022 *)

Crossrefs

Cf. A000578, A003325, A022555, A057903.

Sequence in context: A320648 A141464 A218471 * A254196 A161527 A143651

Adjacent sequences: A139208 A139209 A139210 * A139212 A139213 A139214

Keyword

easy,nonn

Author

Jonathan Vos Post, Jun 06 2008

Extensions

a(29)-a(44) from Nathaniel Johnston, Sep 26 2011

Status

approved