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A145052 One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 1. 0
3, 7, 11, 15, 27, 39, 51, 87, 123, 159, 267, 375, 483, 807, 1131, 1455, 2427, 3399, 4371, 7287, 10203, 13119, 21867, 30615 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..26.

CROSSREFS

Sequence in context: A182634 A173530 A192114 * A100900 A117829 A166092

Adjacent sequences:  A145049 A145050 A145051 * A145053 A145054 A145055

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 30 2008

STATUS

approved

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Last modified November 28 22:38 EST 2014. Contains 250438 sequences.