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A274303 A bisection of A007346. 1
8, 24, 7680, 64, 3715891200, 194641920, 1428329123020800, 160, 1678343852714360832000, 637770664031457116160000, 4714400748520531002654720000, 2602349213183333113465405440000, 27064431817106664380040216576000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..12.

CROSSREFS

Cf. A007346, A002866, A002671.

Sequence in context: A037025 A105063 A166483 * A132586 A208400 A103953

Adjacent sequences:  A274300 A274301 A274302 * A274304 A274305 A274306

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 20 2016

STATUS

approved

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Last modified April 19 07:53 EDT 2021. Contains 343109 sequences. (Running on oeis4.)