OFFSET
1,1
COMMENTS
Table starts
240 1172 5696 27812 135520 662892 3236288
1172 4616 18444 76112 319156 1374400 5998924
5696 18444 61160 215996 781040 2971196 11553392
27812 76112 215996 672256 2154516 7402144 26061700
135520 319156 781040 2154516 6122960 19043548 60655008
662892 1374400 2971196 7402144 19043548 54586424 160144012
3236288 5998924 11553392 26061700 60655008 160144012 432038320
15860868 26765648 46833260 96901472 207093844 509661968 1282142052
77573344 120643572 193465560 368028508 721977376 1652364332 3864421920
380902284 553515168 826218532 1459917480 2659371660 5703493096 12517909388
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..142
FORMULA
Empirical for column k:
k=1: a(n) = 3*a(n-1) +35*a(n-2) -81*a(n-3) -264*a(n-4) +144*a(n-5) +384*a(n-6).
k=2: [order 29].
k=3: [order 62].
EXAMPLE
Some solutions for n=3, k=4:
2 6 2 0 1 0 4 7 4 7 2 1 3 5 1 0 3 6 4 0
3 2 3 6 2 3 2 0 2 0 6 0 7 4 5 4 2 0 3 4
2 6 2 0 1 0 4 7 4 7 3 2 4 6 2 0 3 6 4 0
1 0 1 4 0 6 5 3 5 3 2 6 3 0 1 6 4 2 5 6
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 04 2014
STATUS
approved