A236448 Number of (n+1) X (4+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2 X 2 subblock.

136208, 3081484, 66621676, 1449135596, 33053505704, 776197082280, 18067929385444, 417098720716876, 9663226837691844, 225960164895003720, 5256657839271798652, 121842108056681368004, 2828540664921269026932

Offset

1,1

Comments

Column 4 of A236451.

Links

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

Example

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

Crossrefs

Cf. A236451.

Sequence in context: A023341 A172887 A330399 * A232143 A237470 A254386

Adjacent sequences: A236445 A236446 A236447 * A236449 A236450 A236451

Keyword

nonn

Author

R. H. Hardin, Jan 26 2014

Status

approved