A250171 Number of length 6+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero

64, 1151, 7836, 37881, 129648, 380939, 938128, 2121089, 4309040, 8284391, 14826764, 25544585, 41805464, 66528651, 101887084, 152748637, 222278752, 318099483, 444552268, 612989717, 829094428, 1109083919, 1460065140

Offset

1,1

Comments

Row 6 of A250167

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

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

Crossrefs

Sequence in context: A269000 A189276 A081102 * A128987 A240788 A240294

Adjacent sequences: A250168 A250169 A250170 * A250172 A250173 A250174

Keyword

nonn

Author

R. H. Hardin, Nov 13 2014

Status

approved