OFFSET
1,4
COMMENTS
Row 2 of A254204
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
All solutions for n=4
..6....4....6....4
..4....4....6....6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2015
STATUS
approved