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

Author

Jonathan Vos Post, Jun 06 2008

Keywords

• easy
• nonn

Examples

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

Crossrefs

Cf. A000578, A003325, A022555, A057903.

Programs

Mathematica

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

Extensions

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