A236776 Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock

474, 4170, 36260, 315666, 2750070, 24023328, 209304200, 1823484380, 15890176976, 138601000818, 1208141839194, 10529035857142, 91766648504242, 800062878156980, 6974266520901384, 60789422316274248, 529857104228127312

Offset

1,1

Comments

Column 2 of A236780

Links

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

R. H. Hardin, Empirical recurrence of order 62

Formula

Empirical recurrence of order 62 (see link above)

Example

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

Crossrefs

Sequence in context: A045302 A187612 A237679 * A236636 A104649 A165463

Adjacent sequences: A236773 A236774 A236775 * A236777 A236778 A236779

Keyword

nonn

Author

R. H. Hardin, Jan 31 2014

Status

approved