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A224640 Number of (n+6)X9 0..2 matrices with each 7X7 subblock idempotent 0
6162817, 1477939, 1800748, 1978918, 2061018, 2097855, 2114887, 2124211, 2665911, 3563511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A224642

LINKS

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

EXAMPLE

Some solutions for n=2

..1..0..0..0..0..0..0..0..2....1..1..1..0..2..2..2..0..2

..1..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..1..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..1..0..0..0..0..0..0..0..2....0..0..0..0..0..0..0..0..0

..2..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..1....2..1..0..1..0..2..1..1..1

CROSSREFS

Sequence in context: A254585 A254592 A254360 * A185887 A306872 A186838

Adjacent sequences:  A224637 A224638 A224639 * A224641 A224642 A224643

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 13 2013

STATUS

approved

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Last modified May 16 11:02 EDT 2022. Contains 353700 sequences. (Running on oeis4.)