OFFSET
1,2
COMMENTS
Diagonal of A223331
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..13
EXAMPLE
Some solutions for n=3
..0..1..3....0..1..5....0..4..5....0..1..0....0..1..5....0..1..0....0..2..3
..0..2..6....5..1..5....0..4..5....5..4..6....5..4..0....0..1..5....3..1..3
..6..4..5....3..7..3....6..4..5....0..2..6....6..4..6....0..1..5....0..1..3
Vertex neighbors:
0 -> 1 2 4
1 -> 0 3 5
2 -> 0 3 6
3 -> 1 2 7
4 -> 0 5 6
5 -> 1 4 7
6 -> 2 4 7
7 -> 3 5 6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 19 2013
STATUS
approved