A269108 Number of n X 7 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once.

8748, 8787660, 6482020140, 4227147007836, 2579398703502996, 1509593256271433868, 858502190008810133292, 478110059855042497842996, 262048541877700400412558012, 141832398849461215193264315676

Offset: 1

Author

R. H. Hardin, Feb 19 2016

Keywords

• nonn

Comments

Column 7 of A269109.

Examples

			Some solutions for n=1
..2..1..0..2..2..2..0. .0..1..1..2..3..1..3. .3..3..1..3..0..0..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 64

Crossrefs

Cf. A269109.

Formula

Empirical recurrence of order 64 (see link above).