OFFSET
1,2
COMMENTS
Table starts
..1....2....3....5.....8.....13.....21......34......55.......89.......144
..2....5....9...21....53....105....237.....577....1205.....2681......6349
..3....9...13...30....66....123....252.....535....1074.....2194......4530
..5...21...30...93...249....544...1366....3399....8219....20292.....49933
..8...53...66..249...832...1926...5311...15604...41101...113581....322499
.13..105..123..544..1926...5101..15421...48922..143214...444335...1400682
.21..237..252.1366..5311..15421..49516..163216..516865..1750074...5929076
.34..577..535.3399.15604..48922.163216..597306.2045830..7480857..28310502
.55.1205.1074.8219.41101.143214.516865.2045830.7738947.31691371.133498110
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..264
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2)
k=2: a(n) = a(n-1) +8*a(n-3) -4*a(n-4)
k=3: a(n) = a(n-1) +4*a(n-3) +2*a(n-5) -a(n-7) -2*a(n-9) -2*a(n-11) -a(n-12)
k=4: [order 42] for n>43
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..0. .0..0..1..0. .0..0..0..0. .0..0..0..1. .0..1..0..0
..1..0..0..0. .0..0..0..0. .0..0..0..1. .0..0..1..1. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..1..1. .0..1..1..1. .0..0..0..0
..1..1..0..0. .0..1..0..0. .0..1..1..1. .1..1..1..1. .0..0..0..1
..1..0..0..0. .1..1..0..1. .1..1..1..1. .1..1..1..0. .1..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, May 16 2018
STATUS
approved