A262819 - OEIS

A262819

T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row divisible by 9 and column not divisible by 9, read as a binary number with top and left being the most significant bits.

0, 0, 0, 2744, 0, 0, 21610, 21952, 0, 0, 234096, 323944, 175616, 0, 0, 3103450, 6854952, 4816416, 1442897, 0, 0, 43563108, 178305048, 199142208, 77077352, 11697083, 0, 0, 617554352, 4999029536, 10266462240, 6302057614, 1189915948, 94196375, 0, 0

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OFFSET

1,4

COMMENTS

Table starts

.0.0......2744.......21610.......234096......3103450.....43563108

.0.0.....21952......323944......6854952....178305048...4999029536

.0.0....175616.....4816416....199142208..10266462240.573389614080

.0.0...1442897....77077352...6302057614.635153297526

.0.0..11697083..1189915948.190675572814

.0.0..94196375.18025774598

.0.0.753571000

.0.0

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..48

FORMULA

Empirical for column k:

k=3: [linear recurrence of order 17]

EXAMPLE

Some solutions for n=3 k=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A035774 A107570 A237680 * A094497 A202460 A262820

Adjacent sequences: A262816 A262817 A262818 * A262820 A262821 A262822

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Oct 03 2015

STATUS

approved