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A299303 Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
2, 52, 223, 1024, 5360, 28374, 144040, 743640, 3857242, 19925599, 102977350, 532709362, 2754912665, 14246433006, 73680910336, 381067786735, 1970816457786, 10192855468940, 52716573704127, 272645676769182, 1410103205704342 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A299307.

LINKS

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

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A299307.

Sequence in context: A298766 A299563 A298385 * A299461 A300104 A034311

Adjacent sequences: A299300 A299301 A299302 * A299304 A299305 A299306

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2018

STATUS

approved

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Last modified January 27 12:13 EST 2023. Contains 359840 sequences. (Running on oeis4.)