A212872 Number of nondecreasing sequences of 5 1..n integers with no element dividing the sequence sum.

0, 0, 2, 6, 22, 52, 112, 212, 376, 640, 1011, 1560, 2293, 3328, 4711, 6524, 8765, 11703, 15273, 19886, 25459, 32224, 40193, 50022, 61521, 75059, 90825, 109479, 130520, 155415, 183229, 215594, 252070, 293377, 340266, 393232, 451522, 517139, 590227

Offset

1,3

Comments

Row 5 of A212868.

Links

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

Example

Some solutions for n=8
..3....5....2....2....4....2....4....2....4....5....5....5....2....6....2....4
..3....5....2....2....6....3....4....5....5....6....6....8....2....6....2....7
..4....5....2....3....6....5....6....5....5....6....6....8....2....6....3....7
..6....5....2....5....6....6....6....5....5....7....8....8....2....7....4....8
..6....8....3....7....7....7....7....6....7....7....8....8....7....8....8....8

Crossrefs

Sequence in context: A335131 A147800 A246624 * A306967 A324913 A027561

Adjacent sequences: A212869 A212870 A212871 * A212873 A212874 A212875

Keyword

nonn

Author

R. H. Hardin, May 29 2012

Status

approved