OFFSET
1,2
COMMENTS
Row 3 of A264379.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 70
FORMULA
Empirical recurrence of order 70 (see link above)
EXAMPLE
Some solutions for n=4
..1..6..5..8..7....1..2..5..4..9....5..2..7..4..9....5..2..3..8..7
..0.11..2.13.12....0..7..8..3.12....0..1..8..3.12....0..1.12..9..4
.15..3..4.16..9...15..6.17.16.19...15..6.13.16.17...15..6.13.16.17
.10.17.18.19.14...10.11.18.13.14...10.11.18.19.14...10.11.18.19.14
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 12 2015
STATUS
approved