A183890 Number of arrangements of n+3 numbers in 0..7 with each number being the sum mod 8 of three others.

16, 492, 57614, 1172880, 13388190, 122033732, 1030189438, 8431580544, 68127437030, 547474985956, 4389023189750, 35147929076368, 281325633652942, 2251182017398052, 18011828552749070, 144104466144893120

Offset: 1

Author

R. H. Hardin Jan 07 2011

Keywords

• nonn

Comments

Column 7 of A183892

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..30