A135693 - OEIS

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A135693

Not the sum of three positive squares or cubes.

5

1, 2, 4, 5, 7, 8, 15, 23, 31, 87, 111, 119, 148, 167, 263, 311, 335, 391, 407, 455, 559, 599, 839, 951, 1159, 1231, 1287, 1303, 1391, 1455, 1463, 1607, 1660, 1679, 1751, 1863, 1991, 2351, 2615, 2799, 3247, 3983, 4327, 4367, 5199, 5655, 6047, 6159, 6351

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

OFFSET

1,2

COMMENTS

No other terms < 10^9. Presumably the sequence is finite.

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..82

CROSSREFS

Cf. A113505, A135367.

Sequence in context: A271505 A343915 A187054 * A135367 A141493 A103118

Adjacent sequences: A135690 A135691 A135692 * A135694 A135695 A135696

KEYWORD

nonn

AUTHOR

Zak Seidov and Giovanni Resta, Feb 24 2008

EXTENSIONS

Edited by N. J. A. Sloane, Mar 01 2008

STATUS

approved