A183880 Number of arrangements of n+2 numbers in 0..5 with each number being the sum mod 6 of two others.

4, 89, 1566, 20527, 183310, 1347565, 8984158, 56952323, 351661806, 2141759809, 12950960686, 78020943223, 469112191342, 2817757426037, 16916183927550, 101527228990219, 609257523135022, 3655839340823305, 21935955102434638

Offset: 1

Author

R. H. Hardin Jan 07 2011

Keywords

• nonn

Comments

Column 5 of A183884

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..122