OFFSET
1,1
COMMENTS
Row 3 of A264217.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..5..3..1..2..4....5..1..4..2..9....2..0..1..3..9....0..6..7..3..9
..0..6..9..7..8....0.11..7..3..8....7..5.12..8..4....5..1..2..8..4
.10.16.11.12.14...10..6.12.13.14...10..6.11.13.14...10.16.11.13.19
.17.15.19.13.18...15.18.16.17.19...17.15.16.18.19...17.15.12.18.14
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 08 2015
STATUS
approved