OFFSET
1,1
COMMENTS
Column 7 of A228260
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..75
FORMULA
Empirical: a(n) = 15*a(n-1) -56*a(n-2) for n>14
EXAMPLE
Some solutions for n=4
..3....0....3....0....0....0..-11..-11..-11..-14....3..-11....1....0...14....0
..0...-1..-18...13...-7..-11...19...11....6....7...14...-7....8..-13...-4..-12
..7...10...10..-23....4...14..-19....6...-2...10..-18...11..-11...18....2...17
-22..-20....5...21....1..-12....4..-19...-1..-16....9...-1....6...-4....3....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 19 2013
STATUS
approved