A200081 - OEIS

A200081

Number of 0..7 arrays x(0..n) of n+1 elements with zero n-1st differences

1, 8, 22, 64, 182, 454, 1046, 2546, 5056, 11638, 33262, 101112, 191802, 688304, 769106, 1102184, 5220960, 23546744, 49886556, 135889790, 142614238, 121124812, 570957758

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 7 of A200082

LINKS

Table of n, a(n) for n=1..23.

EXAMPLE

Some solutions for n=6

..2....7....7....2....6....0....0....2....1....1....5....2....0....6....7....6

..4....1....0....2....2....6....6....5....3....0....6....4....3....5....4....2

..3....3....3....1....0....7....6....6....5....1....5....2....4....4....6....3

..3....5....6....2....1....6....5....5....5....2....4....0....3....4....7....5

..5....4....5....5....4....5....5....3....3....2....4....0....1....5....5....6

..7....2....2....7....6....5....5....2....1....1....5....2....0....6....2....6

..4....6....5....2....2....6....1....5....3....0....6....4....3....5....4....7

CROSSREFS

Sequence in context: A326162 A126362 A140418 * A199110 A083098 A322070

Adjacent sequences: A200078 A200079 A200080 * A200082 A200083 A200084

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 13 2011

STATUS

approved