A237681 Number of (n+1)X(4+1) 0..2 arrays colored with the upper median plus the lower median minus the minimum of every 2X2 subblock

15948, 308814, 5732688, 109962932, 2160608712, 42145629006, 813403060652, 15785972703066, 307676496617348, 5982797095826786, 116075340014467886, 2255217045668068532, 43858394750378508360, 852358093223899940980

Offset

1,1

Comments

Column 4 of A237683

Links

R. H. Hardin, Table of n, a(n) for n = 1..148

Example

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

Crossrefs

Sequence in context: A237071 A251848 A129473 * A218642 A151811 A151877

Adjacent sequences: A237678 A237679 A237680 * A237682 A237683 A237684

Keyword

nonn

Author

R. H. Hardin, Feb 11 2014

Status

approved