OFFSET
1,5
COMMENTS
Table starts
.1..1...1....1......1.......1........1..........1...........1............1
.1..2...2....3......6......10.......21.........42..........86..........179
.1..2...2....8.....13......26.......55........154.........356..........884
.1..3...8...25.....65.....226......755.......2539........8794........30539
.1..6..13...65....330....1297.....6393......30904......154041.......764894
.1.10..26..226...1297....8888....60841.....421168.....2940940.....20639456
.1.21..55..755...6393...60841...591585....5880829....58383932....585233819
.1.42.154.2539..30904..421168..5880829...83224304..1180228568..16849867573
.1.86.356.8794.154041.2940940.58383932.1180228568.23865691820.485485211198
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..219
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 2*a(n-1) +a(n-2) -a(n-3) -2*a(n-4) +a(n-5)
k=3: [order 18]
k=4: [order 66]
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..1. .0..1..1..1. .0..1..0..1. .0..0..0..0. .0..0..1..1
..0..0..1..1. .1..1..0..1. .1..0..1..0. .0..1..0..0. .0..0..1..1
..1..1..0..0. .1..0..1..1. .0..1..0..1. .0..0..1..0. .0..0..1..1
..1..1..0..0. .1..1..1..0. .1..0..1..0. .1..0..0..0. .0..1..0..0
..1..1..0..0. .1..1..0..1. .0..1..0..1. .0..1..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 24 2018
STATUS
approved