OFFSET
1,2
COMMENTS
Row 4 of A264364.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..8..9..3..4....7..8..9..1..2....7..1..9..3..2....0..1..9..3..2
..5..1..2..6..7....0.13.14..3..4....0.13..5..6..4....5..6..7..8..4
.17.11.10.13.14....5..6.10.11.12...10.11.12..8.14...10.11.12.13.14
.22.23.12.16.19...15.23.17.16.19...22.23.17.16.19...22.16.15.18.19
.15.21.20.18.24...20.21.22.18.24...15.21.20.18.24...20.21.17.23.24
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 12 2015
STATUS
approved