A211698 Number of nonnegative integer arrays of length n+2*6-2 with new values introduced in order 0 upwards and every value appearing only in runs of at least 6.

1, 2, 3, 4, 5, 6, 7, 10, 15, 22, 31, 42, 55, 75, 107, 156, 227, 325, 455, 637, 906, 1312, 1920, 2810, 4077, 5883, 8509, 12407, 18252, 26994, 39910, 58859, 86740, 128153, 190263, 283867, 424664, 635605, 951200, 1424659, 2138744, 3221209, 4865705

Offset

1,2

Comments

Column 6 of A211700.

Links

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

Example

All solutions for n=5
..0....0....0....0....0
..0....0....0....0....0
..0....0....0....0....0
..0....0....0....0....0
..0....0....0....0....0
..0....0....0....0....0
..0....1....0....0....0
..0....1....0....0....1
..0....1....1....0....1
..1....1....1....0....1
..1....1....1....0....1
..1....1....1....0....1
..1....1....1....0....1
..1....1....1....0....1
..1....1....1....0....1

Crossrefs

Cf. A211700.

Sequence in context: A005140 A176486 A017845 * A230016 A306110 A092026

Adjacent sequences: A211695 A211696 A211697 * A211699 A211700 A211701

Keyword

nonn

Author

R. H. Hardin, Apr 19 2012

Status

approved