OFFSET
1,1
COMMENTS
Column 7 of A264299.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..78
EXAMPLE
Some solutions for n=3
..8..0..1..2..3.13..5..6....8..9..4..5..3..7.14.15....2..0..4.11.12..7..5..6
.16.11.18.10..4.15.22..7....0..1..2.10.11.12..6.23...10..1..9..3.20.15.22.23
.24..9.20.21.12.23.14.31...24.19.20.18.22.13.21.31....8.25.17.21.19.13.14.31
.26.17.25.19.27.28.29.30...16.17.25.26.27.28.29.30...16.24.18.26.27.28.29.30
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2015
STATUS
approved