A223788 Number of nX7 0..2 arrays with rows, diagonals and antidiagonals unimodal.
239, 57121, 5425943, 288823579, 11992802966, 478507693443, 20229461153969, 915762458891757, 43206434381517063, 2069374312587593444, 99272303599050335774, 4753191310090939188404, 227274223415204231413155
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..0..0..2..0....0..0..0..1..1..2..1....0..0..0..0..2..1..1 ..0..0..0..2..0..0..0....0..0..0..1..2..2..2....0..0..0..1..1..1..0 ..0..0..0..0..2..2..1....0..0..0..0..0..2..0....0..0..1..1..2..2..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..75
Comments