A295273 - OEIS

A295273

Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.

44, 865, 19997, 449827, 10203847, 230659662, 5221177246, 118139247475, 2673342943199, 60493860184777, 1368887903616187, 30975935104352291, 700940389558441876, 15861259863124103232, 358917220084448007191

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OFFSET

1,1

COMMENTS

Column 6 of A295275.

LINKS

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

R. H. Hardin, Empirical recurrence of order 78

FORMULA

Empirical recurrence of order 78 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A295275.

Sequence in context: A297605 A297083 A282994 * A244998 A159948 A183756

Adjacent sequences: A295270 A295271 A295272 * A295274 A295275 A295276

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2017

STATUS

approved