A262417 - OEIS

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A262417

Number of (n+1)X(5+1) 0..1 arrays with each row divisible by 3 and column not divisible by 3, read as a binary number with top and left being the most significant bits.

22, 709, 15310, 428301, 9401742, 220808869, 4856629870, 108673357501, 2390753728462, 52824430238229, 1162134451107630, 25594859555510701, 563086760980631182, 12391301216924710789, 272608619423065220590

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 5 of A262420.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 22*a(n-1) +215*a(n-2) -4730*a(n-3) -14143*a(n-4) +311146*a(n-5) +364285*a(n-6) -8014270*a(n-7) -3615956*a(n-8) +79551032*a(n-9) +9486400*a(n-10) -208700800*a(n-11)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Cf. A262420.

Sequence in context: A300137 A025760 A229124 * A027409 A159189 A067768

Adjacent sequences: A262414 A262415 A262416 * A262418 A262419 A262420

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 22 2015

STATUS

approved