A183750 Number of (n+1) X 2 0..3 arrays with equal numbers of 2 X 2 subblocks with sum over 6 and with sum under 6.

44, 888, 8816, 193360, 2176856, 36036868, 491791680, 7982788196, 115288342048, 1803848495856, 27040300367560, 421049515254172, 6423126163964616, 99760622173747556, 1537503104661585488, 23911589506997353600

Offset

1,1

Comments

Column 1 of A183756.

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A244998 A159948 A183756 * A133349 A010838 A191374

Adjacent sequences: A183747 A183748 A183749 * A183751 A183752 A183753

Keyword

nonn

Author

R. H. Hardin, Jan 06 2011

Status

approved