OFFSET
1,1
COMMENTS
Column 6 of A264676.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..8..9..1..2.13..4..5....8.17..1.12..3..4..5....9..0..1..2.13..4..5
..0.16.25..3.10.11..6....0..7..2..9.19.20..6...16.17..8..3.10.11..6
..7.23.24.26.17.12.19...22.14.24.10.11.18.13....7.31.24.26.27.12.19
.14.15.22.33.18.34.20...29.15.16.33.34.25.26...14.15.22.23.18.34.20
.21.28.29.30.31.32.27...21.28.23.30.31.32.27...21.28.29.30.25.32.33
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 20 2015
STATUS
approved