A238307 Number of (n+1)X(2+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

1776, 20128, 227622, 2570594, 29039618, 328887234, 3724943100, 42156330796, 477092412942, 5400733421386, 61135784139176, 691996650421482, 7832804389781870, 88662745929663094, 1003604775495708714

Offset

1,1

Comments

Column 2 of A238311

Links

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

R. H. Hardin, Empirical recurrence of order 76

Formula

Empirical recurrence of order 76 (see link above)

Example

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

Crossrefs

Sequence in context: A047826 A143995 A205938 * A233953 A282404 A167282

Adjacent sequences: A238304 A238305 A238306 * A238308 A238309 A238310

Keyword

nonn

Author

R. H. Hardin, Feb 24 2014

Status

approved