OFFSET
1,5
COMMENTS
Table starts
.1....1.....1.......1........1..........1............1.............1
.1....5....12......37......104........301..........864..........2485
.1...12....10......49......144........481.........2016..........7730
.1...37....49.....268.....1281.......6044........35788........202419
.1..104...144....1281....10809......86201.......789026.......6952444
.1..301...481....6044....86201....1084333.....15983426.....223362153
.1..864..2016...35788...789026...15983426....362523451....7903384843
.1.2485..7730..202419..6952444..223362153...7903384843..267640924872
.1.7144.30637.1185261.62368324.3195010015.176308045666.9307023743602
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 5*a(n-2) +8*a(n-3) +4*a(n-4)
k=3: [order 13] for n>15
k=4: [order 50] for n>53
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..0. .0..0..1..1. .0..0..1..0. .0..1..1..1. .0..1..1..0
..1..0..1..1. .0..0..0..1. .0..1..1..1. .1..1..0..1. .0..0..1..1
..1..1..0..0. .1..1..1..0. .1..0..0..1. .1..0..0..0. .0..1..0..0
..1..0..0..1. .0..1..0..1. .1..1..0..0. .0..0..1..1. .0..0..1..0
..1..1..1..1. .0..0..1..1. .0..1..1..0. .1..0..1..1. .1..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 08 2018
STATUS
approved