OFFSET
1,1
COMMENTS
Row 4 of A264341.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..0..2..3....1..0..3..2....0..7..2..3....1..0..2..3....1..7..2..3
..4..5..6..7....4..6..5..7....5..4..6..1...10..5..7..6....4..5..0..6
..8..9.10.11...14..9.11.10....8..9.10.11....8..9..4.11....8.10..9.11
.12.13.14.15...12.19..8.15...12.13.15.14...13.19.14.15...12.13.14.15
.16.17.18.19...17.16.18.13...17.16.18.19...16.17.12.18...16.17.19.18
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2015
STATUS
approved