A250164 Number of length n+1 0..5 arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero

6, 48, 380, 2860, 19896, 129648, 810964, 4962056, 30034672, 180893724, 1087112084, 6527090276, 39173693352, 235070531992, 1410496377492, 8463170413616, 50779536937024, 304678626418660, 1828075665965204, 10968465043204908

Offset

1,1

Comments

Column 5 of A250167

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Sequence in context: A326895 A291033 A155130 * A264083 A083233 A002918

Adjacent sequences: A250161 A250162 A250163 * A250165 A250166 A250167

Keyword

nonn

Author

R. H. Hardin, Nov 13 2014

Status

approved