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A224259 Number of nX5 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing 1
86, 1600, 12032, 59855, 238366, 816361, 2485967, 6868203, 17467782, 41364960, 92057680, 194025959, 389786452, 750442433, 1391017095, 2492190125, 4330442992, 7319061332, 12062947260, 19430764421, 30648578146, 47419866241, 72077566743 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A224262

LINKS

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

FORMULA

Empirical: a(n) = (1009/907200)*n^10 + (1489/181440)*n^9 + (6571/60480)*n^8 + (18937/30240)*n^7 + (148447/43200)*n^6 + (74281/8640)*n^5 + (10535767/181440)*n^4 + (1477907/45360)*n^3 + (1282339/25200)*n^2 - (151027/252)*n + 913 for n>4

EXAMPLE

Some solutions for n=3

..0..0..1..1..0....0..1..1..1..1....0..0..0..0..2....1..0..0..0..0

..0..0..1..1..1....1..2..1..1..1....0..0..0..1..2....1..1..0..0..0

..0..1..2..1..1....2..2..2..2..1....0..0..1..2..2....2..1..0..0..0

CROSSREFS

Sequence in context: A206615 A242092 A232859 * A223915 A224187 A223930

Adjacent sequences:  A224256 A224257 A224258 * A224260 A224261 A224262

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 02 2013

STATUS

approved

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Last modified November 18 03:48 EST 2019. Contains 329248 sequences. (Running on oeis4.)