OFFSET
1,5
COMMENTS
Table starts
.1....1......1........1..........1............1..............1...............1
.1....6.....16.......31.........96..........301............801............2261
.1...16.....60......177........869.........3994..........16348...........71669
.1...31....177......910.......6506........44519.........289576.........1933227
.1...96....869.....6506......88469......1064451.......11592086.......134880572
.1..301...3994....44519....1064451.....21225209......374855869......7251402774
.1..801..16348...289576...11592086....374855869....10777843410....340260590831
.1.2261..71669..1933227..134880572...7251402774...340260590831..17890820040132
.1.6746.320252.12967823.1582121415.141096153092.10761797803245.941238613911895
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) = 4*a(n-1) -5*a(n-2) +11*a(n-3) -18*a(n-4) +4*a(n-5)
k=3: [order 21]
k=4: [order 51]
EXAMPLE
Some solutions for n=5 k=4
..1..1..0..0. .0..1..0..0. .0..0..1..1. .1..1..1..0. .0..0..1..1
..0..1..0..0. .0..1..1..0. .0..0..0..1. .0..1..0..1. .0..1..1..0
..0..0..1..1. .1..0..0..0. .0..1..0..0. .1..0..1..1. .1..1..1..0
..0..1..1..1. .1..1..1..0. .1..1..0..0. .1..1..1..0. .0..0..1..1
..0..1..0..0. .1..0..1..1. .1..0..0..0. .1..0..0..0. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 22 2017
STATUS
approved