OFFSET
1,5
COMMENTS
Table starts
.0...1.....1.......1.........1...........3.............3...............4
.1...2.....6......16........40..........96...........240.............608
.0...5....16......36.......172.........764..........2728............9880
.0..10....45.....216......1528.......11728.........66372..........403920
.1..21...133....1160.....14852......163744.......1573479........16103502
.0..44...400....4640....105081.....1994830......29691127.......480994368
.0..93..1204...23140....813473....25172836.....591482528.....15554895920
.1.196..3561..110592...6587227...316806958...11959837149....510948245264
.0.413.10554..501828..50597392..3939510885..234588752099..16034698666868
.0.870.31493.2390752.392445418.49105816488.4630258704238.508458281055496
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..198
FORMULA
Empirical for column k:
k=1: a(n) = a(n-3)
k=2: a(n) = 2*a(n-1) +a(n-4)
k=3: [order 15]
k=4: [order 10] for n>11
k=5: [order 84]
Empirical for row n:
n=1: a(n) = a(n-2) +a(n-3) +a(n-4) -a(n-6)
n=2: a(n) = 2*a(n-1) +8*a(n-4)
n=3: [order 70]
n=4: [order 56] for n>59
EXAMPLE
Some solutions for n=4 k=4
..1..2..5..6..7....1..2..3..4..7....1..2..3..7..8....1..5..3..6..8
..0.10..8..3..4....0.10..8.11.12....0.10.11.12..4....0..7..2.12..4
.11.12.15.14..9....5..6.13.17..9....5..6.13.17..9...11.15.13.14..9
.16.20.18.13.23...16.20.18.21.14...16.20.18.21.14...10.20.18.22.23
.21.22.17.24.19...15.22.23.24.19...15.22.23.24.19...21.16.17.24.19
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 17 2015
STATUS
approved