A200467 Number of 0..6 arrays x(0..n-1) of n elements with each no smaller than the sum of its four previous neighbors modulo 7.

7, 28, 112, 448, 1792, 7140, 28434, 113193, 450812, 1795581, 7151892, 28486092, 113459436, 451907189, 1799936702, 7169108310, 28554377148, 113731374269, 452989138551, 1804244048124, 7186257254293, 28622677050945, 114003380196965

Offset

1,1

Links

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

Example

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

Crossrefs

Column 6 of A200469.

Sequence in context: A243150 A344206 A026642 * A002042 A200666 A207098

Adjacent sequences: A200464 A200465 A200466 * A200468 A200469 A200470

Keyword

nonn

Author

R. H. Hardin, Nov 18 2011

Status

approved