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A122863 Smallest integer not the sum of nonzero powers of previous terms. 1
1, 2, 6, 12, 24, 54, 108, 246, 510, 1218, 2742, 6930, 16242, 47706, 144018, 672732, 2756124, 5656266, 27943404, 75554226, 661653378, 1323306756 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

At most one power of a previous term is allowed in the sum. Sequence and the first few terms from Andrew Weimholt. Additional terms from Jud McCranie.

LINKS

Table of n, a(n) for n=1..22.

CROSSREFS

Cf. A034875.

Sequence in context: A132176 A197469 A133953 * A170935 A277173 A163264

Adjacent sequences:  A122860 A122861 A122862 * A122864 A122865 A122866

KEYWORD

nonn

AUTHOR

Jud McCranie, Sep 15 2006

EXTENSIONS

a(21)-a(22) from Donovan Johnson, Aug 31 2008

Offset corrected by Donovan Johnson, Dec 22 2013

STATUS

approved

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Last modified June 7 00:02 EDT 2020. Contains 334836 sequences. (Running on oeis4.)