login
A232579
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically or antidiagonally
9
16, 72, 72, 516, 1064, 516, 3048, 16316, 16316, 3048, 18944, 265670, 767942, 265670, 18944, 115892, 4252876, 33815878, 33815878, 4252876, 115892, 713488, 67979266, 1481426938, 4107586864, 1481426938, 67979266, 713488, 4389504, 1090643352
OFFSET
1,1
COMMENTS
Table starts
......16..........72.............516...............3048..................18944
......72........1064...........16316.............265670................4252876
.....516.......16316..........767942...........33815878.............1481426938
....3048......265670........33815878.........4107586864...........497042884074
...18944.....4252876......1481426938.......497042884074........164594058779448
..115892....67979266.....65570285646.....60461419039912......55003296878624386
..713488..1090643352...2886850804200...7337689178112392...18327756561362881814
.4389504.17469440576.127313989421500.891245405559834402.6110458911406869788438
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 11]
k=2: [order 37] for n>38
EXAMPLE
Some solutions for n=2 k=4
..0..2..2..0..0....0..2..2..0..2....0..2..2..0..1....0..1..0..2..1
..1..1..2..1..2....1..0..1..2..1....1..0..1..2..1....2..0..1..2..0
..0..2..2..0..1....2..0..2..0..0....0..0..0..1..0....1..2..0..1..2
CROSSREFS
Sequence in context: A258724 A264888 A272964 * A212862 A253151 A339993
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 26 2013
STATUS
approved