OFFSET
1,2
COMMENTS
Column 7 of A264878.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..95
EXAMPLE
Some solutions for n=4
.16..2..1..4..5.21..7.23...16..2..3..4..5.21..7.23...16..0..3.19..5..6..7.23
..9..0.11.10..3.29.15..6....9..0..1.27.11.14.15..6....9.10..1..2.11..4.15.31
.32..8.19.20.36.12.13.14...32..8.19.10.36.12.13.22...32..8.17.20.36.12.13.14
.25.26.17.18.27.30.31.22...25.26.17.18.29.20.31.30...25.26.27.18.29.28.21.22
.33.24.35.34.37.28.39.38...33.24.35.34.37.28.39.38...33.24.35.34.37.38.39.30
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2015
STATUS
approved