OFFSET
1,1
COMMENTS
Table starts
....3......7.......17.........39..........91...........211.............491
....7.....33......129........481........1751..........6433...........23507
...17....129......775.......4193.......23059........124431..........680991
...39....481.....4193......34151......275243.......2223913........17910863
...91...1751....23059.....275243.....3336437......39543877.......476435051
..211...6433...124431....2223913....39543877.....701321971.....12425155219
..491..23507...680991...17910863...476435051...12425155219....329002027139
.1141..86295..3698901..144971845..5674074209..220821219009...8615734849077
.2653.316099.20206283.1169783337.68219097971.3914741097513.227806404072631
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..179
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) + a(n-2) - a(n-3) + a(n-4).
k=2: [order 20].
k=3: [order 44] for n > 45.
k=4: [order 75] for n > 77.
EXAMPLE
Some solutions for n=3, k=4:
2 0 1 1 2 0 1 1 1 0 1 1 2 0 2 1 1 0 1 1
1 1 0 1 0 1 1 1 1 1 0 1 0 1 0 1 1 1 2 1
1 1 2 0 1 0 1 2 1 0 1 1 1 0 1 1 1 1 1 2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 25 2013
STATUS
approved