

A034875


Smallest integer not the sum of powers of some earlier terms.


1



1, 2, 6, 12, 25, 85, 194, 590, 1695, 4879, 19077, 83994, 167988, 1041780, 2448645, 9677725, 33250403, 117499773, 811972692, 1762911460
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OFFSET

1,2


COMMENTS

At most one power of the previous terms can be used.
Each term is at least twice the previous term. Some terms are twice the previous one.


LINKS

Table of n, a(n) for n=1..20.


EXAMPLE

21 = 1^1+2^3+12^1, 22 = 2^2+6^1+12^1, 23=1^1+2^2+6^1+12^1, 24 = 1^1+2^4+6^1+12^0


CROSSREFS

See A122863 for another version.
Cf. A122863.
Sequence in context: A232164 A214663 A151385 * A136515 A141347 A335724
Adjacent sequences: A034872 A034873 A034874 * A034876 A034877 A034878


KEYWORD

nonn,nice


AUTHOR

Erich Friedman


EXTENSIONS

More terms from Andrew Weimholt, Sep 11 2006 and Jud McCranie, Sep 13 2006
Edited by Jud McCranie, Sep 13 2006
a(19)a(20) from Donovan Johnson, Aug 31 2010


STATUS

approved



