A202662 Number of -6..6 arrays of n elements with first through fourth differences also in -6..6

13, 127, 967, 5509, 23425, 101567, 438177, 1895197, 8198571, 35463355, 153408903, 663650521, 2870932567, 12419542739, 53726653631, 232420358051, 1005444905517, 4349531110857, 18815972516807, 81397465699935, 352123564686167

Offset

1,1

Comments

Column 6 of A202664

Links

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

Example

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

Crossrefs

Sequence in context: A278173 A142673 A179550 * A202122 A201086 A139786

Adjacent sequences: A202659 A202660 A202661 * A202663 A202664 A202665

Keyword

nonn

Author

R. H. Hardin Dec 22 2011

Status

approved