OFFSET
1,5
COMMENTS
Table starts
.1...1..1..1....1....1....1.......1.......1.......1.........1..........1
.1...4..7.13...26...49...99.....194.....387.....773......1538.......3081
.1...7..5..9...15...17...40......73......87.....219.......433........583
.1..13..9.11...20...17...25......70......67.....101.......292........325
.1..26.15.20...55..201..337....1359....5918...13840.....50917.....214418
.1..49.17.17..201..137...42....5165....6357....5846....188507.....395242
.1..99.40.25..337...42..116....6542....3137....4862....144931.....173351
.1.194.73.70.1359.5165.6542..273937.1450263.3623207..71239378..487361093
.1.387.87.67.5918.6357.3137.1450263.2062731.1912261.381186998.1094057409
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..287
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = a(n-1) +3*a(n-2) -4*a(n-4) for n>5
k=3: [order 11] for n>13
k=4: [order 9] for n>13
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..0. .0..0..0..0. .0..0..1..0. .0..1..1..0. .0..0..0..1
..1..1..0..0. .1..1..1..1. .1..1..0..1. .0..1..1..0. .0..0..0..1
..0..0..0..0. .1..1..1..1. .1..1..1..1. .0..1..1..0. .0..0..0..1
..0..1..0..0. .1..1..1..1. .1..1..0..0. .0..1..1..0. .0..0..0..1
..1..0..1..1. .1..1..1..1. .1..1..0..1. .0..1..1..0. .0..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, May 24 2018
STATUS
approved