OFFSET
1,1
COMMENTS
Column 7 of A195232
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..15
EXAMPLE
Some solutions for n=4
..1........5........0........1........1........6........7........5
..0.1......6.5......1.0......2.2......2.1......5.6......7.6......5.4
..1.1.2....6.6.5....0.1.1....2.2.2....1.2.2....6.6.5....6.7.6....5.4.4
..0.1.1.2..6.6.6.6..1.0.1.2..2.1.2.2..1.1.1.2..6.6.6.6..6.6.6.7..5.4.4.3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 13 2011
STATUS
approved