A236592 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock

256, 2968, 2968, 34800, 80008, 34800, 407904, 2181116, 2181116, 407904, 4780656, 59464564, 139039736, 59464564, 4780656, 55986224, 1618144324, 8837067764, 8837067764, 1618144324, 55986224, 655930368, 44032289456, 560696734212

Offset

1,1

Comments

Table starts

........256..........2968..........34800..........407904.........4780656

.......2968.........80008........2181116........59464564......1618144324

......34800.......2181116......139039736......8837067764....560696734212

.....407904......59464564.....8837067764...1309409137556.193437989847244

....4780656....1618144324...560696734212.193437989847244

...55986224...44032289456.35575423589536

..655930368.1198678030904

.7685235904

Links

R. H. Hardin, Table of n, a(n) for n = 1..39

Formula

Empirical for column k:

k=1: [linear recurrence of order 22]

Example

Some solutions for n=2 k=4
..0..0..1..3..0....0..0..2..2..0....0..0..0..2..0....0..0..3..1..0
..0..0..0..0..3....0..0..1..0..3....0..0..2..3..1....0..0..0..1..1
..0..3..3..0..1....0..2..2..0..0....0..1..2..1..2....0..3..1..2..3

Crossrefs

Sequence in context: A236654 A236198 A236195 * A236589 A236142 A236139

Adjacent sequences: A236589 A236590 A236591 * A236593 A236594 A236595

Keyword

nonn,tabl

Author

R. H. Hardin, Jan 29 2014

Status

approved