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A124567 Main diagonal of table A124560. 1
1, 1, 3, 22, 317, 7581, 272914, 13975298, 981599065, 92344174075, 11474433841581, 1869937363283342, 398202456366104555, 110561615797436467938, 39978343388337757968279, 18814183279605303823720601 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..15.

CROSSREFS

Cf. A124560; A124557 (variant).

Sequence in context: A271848 A144681 A261280 * A161967 A192036 A229770

Adjacent sequences:  A124564 A124565 A124566 * A124568 A124569 A124570

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 07 2006

STATUS

approved

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Last modified May 1 23:10 EDT 2016. Contains 272313 sequences.