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A135367 Not the sum of three perfect powers (assuming 1, but not 0, is a perfect power). 4
1, 2, 4, 5, 7, 8, 15, 23, 31, 87, 111, 119, 167, 335, 1391, 1455, 1607, 1679, 1991, 25887, 26375 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..21.

CROSSREFS

Cf. A113505, A135693, A135393, A135402.

Complement of A074499.

Sequence in context: A343915 A187054 A135693 * A141493 A103118 A346140

Adjacent sequences:  A135364 A135365 A135366 * A135368 A135369 A135370

KEYWORD

nonn

AUTHOR

Zak Seidov and Giovanni Resta, Feb 24 2008

STATUS

approved

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Last modified November 28 04:05 EST 2021. Contains 349400 sequences. (Running on oeis4.)