A224267 - OEIS

A224267

Number of 7 X n 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

36, 1296, 24842, 296646, 2485967, 15921905, 83124099, 371699763, 1478187738, 5375576014, 18237850918, 58547208334, 179599458173, 530112786109, 1512954573026, 4190185564746, 11292006460221, 29674041029167, 76177448992499, 191331238729653, 470802086175412

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

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..41

R. H. Hardin, Empirical polynomial of degree 28

FORMULA

Empirical polynomial of degree 28 (see link above).

EXAMPLE

Some solutions for n=3:

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....1..1..0....0..1..0

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