A238068 Number of (n+1) X (4+1) 0..3 arrays with the maximum minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.

67056, 1499348, 27034844, 506608980, 10213967484, 209604948500, 4182799295184, 82645994204968, 1667663702267092, 34042629929788000, 681207913251084884, 13549159089499797936, 273108562601664849776, 5541483617646992959720

Offset

1,1

Comments

Column 4 of A238072.

Links

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

Example

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

Crossrefs

Cf. A238072.

Sequence in context: A252991 A340404 A249193 * A235892 A253976 A237777

Adjacent sequences: A238065 A238066 A238067 * A238069 A238070 A238071

Keyword

nonn

Author

R. H. Hardin, Feb 17 2014

Status

approved