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A200270 Number of 0..6 arrays x(0..n+1) of n+2 elements with zero n-1st differences 0
1, 7, 13, 25, 37, 53, 53, 83, 119, 261, 477, 955, 615, 1617, 937, 2447, 5409, 13829, 9379, 17547 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A200272

LINKS

Table of n, a(n) for n=1..20.

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A137165 A087195 A255653 * A031887 A294943 A111721

Adjacent sequences: A200267 A200268 A200269 * A200271 A200272 A200273

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 15 2011

STATUS

approved

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Last modified March 31 05:14 EDT 2023. Contains 361634 sequences. (Running on oeis4.)