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A224632 Number of (n+5)X9 0..2 matrices with each 6X6 subblock idempotent 0
338635, 187090, 225179, 245916, 256100, 261192, 264100, 326973, 430055, 553586, 686661, 824129, 963797, 1165618, 1469816, 1896847, 2456254, 3152394, 3987498, 5023727, 6363433, 8129436, 10454151 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A224636

LINKS

Table of n, a(n) for n=1..23.

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A022225 A114674 A185475 * A234726 A132660 A236609

Adjacent sequences:  A224629 A224630 A224631 * A224633 A224634 A224635

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 12 2013

STATUS

approved

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Last modified January 27 03:09 EST 2022. Contains 350601 sequences. (Running on oeis4.)