A236447 Number of (n+1)X(3+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock

17258, 280436, 4535608, 66621676, 1010208094, 15722137048, 247623908622, 3790739028840, 58545992300474, 905358628033160, 14130476092040594, 217449189657776236, 3373160484277287464, 52056868857459546556

Offset

1,1

Comments

Column 3 of A236451

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A334310 A293478 A076774 * A094413 A209967 A093790

Adjacent sequences: A236444 A236445 A236446 * A236448 A236449 A236450

Keyword

nonn

Author

R. H. Hardin, Jan 26 2014

Status

approved