A211832 Number of nonnegative integer arrays of length n+5 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value 5

1, 22, 289, 2997, 27312, 231046, 1874580, 14904776, 117918244, 938764343, 7584314256, 62571430262, 529504655127, 4609739350977, 41356047158995, 382634653400446, 3651204088678672, 35918296393466763, 364017008486567355

Offset

1,2

Comments

Column 4 of A211836

Links

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

Example

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

Crossrefs

Sequence in context: A020922 A258461 A320549 * A211559 A333063 A022746

Adjacent sequences: A211829 A211830 A211831 * A211833 A211834 A211835

Keyword

nonn

Author

R. H. Hardin Apr 21 2012

Status

approved