A183751 Number of (n+1) X 3 0..3 arrays with equal numbers of 2 X 2 subblocks with sum over 6 and with sum under 6.

888, 35524, 1739668, 104016508, 5856201636, 341710892328, 20208751939268, 1213346056106724, 73322848934272924, 4459182985398868984, 272447106073726052548, 16714117356512860910632, 1028762217808136919742044

Offset

1,1

Comments

Column 2 of A183756.

Links

R. H. Hardin, Table of n, a(n) for n = 1..147

Example

Some solutions for 5 X 3:
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..0..0....0..0..1....0..0..0....0..0..0....1..0..0....1..0..0....1..0..0
..2..3..3....1..1..2....3..2..1....2..2..0....1..3..0....0..2..1....0..3..2
..3..1..2....3..2..3....2..1..3....3..3..3....3..3..3....3..3..1....3..3..2
..2..0..3....3..2..1....2..3..1....2..3..3....0..1..3....1..3..1....3..1..3
...
...M..M.......M..M.......M..M.......M..M.......M..M.......M..M.......M..M...
...E..E.......M..M.......M..M.......M..M.......M..M.......M..M.......M..M...
...P..P.......P..P.......P..P.......P..P.......P..P.......P..P.......P..P...
...E..E.......P..P.......P..P.......P..P.......P..P.......P..P.......P..P...

Crossrefs

Sequence in context: A203724 A006915 A178270 * A231954 A224338 A250513

Adjacent sequences: A183748 A183749 A183750 * A183752 A183753 A183754

Keyword

nonn

Author

R. H. Hardin, Jan 06 2011

Status

approved