A223660 -id:A223660 - cp's OEIS frontend

A224113 T(n,k)=Number of nXk 0..3 arrays with row sums and column sums unimodal.

4, 16, 16, 50, 256, 50, 130, 3060, 3060, 130, 296, 29922, 141112, 29922, 296, 610, 252912, 5286827, 5286827, 252912, 610, 1163, 1912914, 169786856, 762031090, 169786856, 1912914, 1163, 2083, 13254601, 4837645361, 93991412090, 93991412090

Offset: 1

R. H. Hardin Mar 31 2013

Table starts
....4........16............50..............130...............296
...16.......256..........3060............29922............252912
...50......3060........141112..........5286827.........169786856
..130.....29922.......5286827........762031090.......93991412090
..296....252912.....169786856......93991412090....44633436796823
..610...1912914....4837645361...10255460738958.18747100782890395
.1163..13254601..125243425246.1013220280453733
.2083..85563043.2997702534361
.3544.521069404
.5776

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

R. H. Hardin, Table of n, a(n) for n = 1..59

Column 1 is A223659

Column 2 is A223660

cp's OEIS Frontend

A224113 T(n,k)=Number of nXk 0..3 arrays with row sums and column sums unimodal.

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