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A123458 Duplicate of A048194. 0
1, 2, 4, 9, 21, 56, 164, 557, 2223, 10766 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Sequence in context: A287694 A148074 A130866 * A048194 A148075 A058718

Adjacent sequences:  A123455 A123456 A123457 * A123459 A123460 A123461

KEYWORD

dead

STATUS

approved

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Last modified September 20 13:59 EDT 2019. Contains 327238 sequences. (Running on oeis4.)