A200468 Number of 0..7 arrays x(0..n-1) of n elements with each no smaller than the sum of its four previous neighbors modulo 8.

8, 36, 164, 750, 3434, 15446, 69136, 309748, 1386973, 6207948, 27781867, 124317636, 556310068, 2489502301, 11140314293, 49852273554, 223086037878, 998302588120, 4467360525658, 19991251154656, 89460006607948, 400329985806851

Offset: 1

Author

R. H. Hardin Nov 18 2011

Keywords

• nonn

Comments

Column 7 of A200469

Examples

			Some solutions for n=6
..3....3....2....0....3....2....2....3....1....0....4....4....1....4....1....5
..7....6....6....5....5....2....6....5....4....4....4....4....4....4....1....5
..4....4....3....6....3....6....4....3....5....6....0....1....5....3....7....7
..6....6....6....7....6....4....6....5....3....6....3....2....6....5....7....1
..4....6....3....6....2....7....2....1....7....2....5....4....1....7....7....4
..7....7....6....7....4....4....3....7....4....5....4....5....2....3....7....5
		

Links

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