A274727 Number of nX7 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) or (-1,0) and new values introduced in order 0..2.

365, 6144, 25268, 421904, 7016284, 116633012, 1980677448, 33415073716, 564905405336, 9541460598408, 161295215603556, 2725041270964876, 46055189349633552, 778212220006487596, 13151212573069796840

Offset: 1

Author

R. H. Hardin, Jul 03 2016

Keywords

• nonn

Comments

Column 7 of A274728.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 59

Crossrefs

Cf. A274728.

Formula

Empirical recurrence of order 59 (see link above)