OFFSET
1,1
COMMENTS
Column 3 of A223432
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 466*a(n-2) -69185*a(n-4) +4382193*a(n-6) -130562793*a(n-8) +2110263466*a(n-10) -20078358067*a(n-12) +116999028688*a(n-14) -423034699529*a(n-16) +947474341907*a(n-18) -1308325237689*a(n-20) +1105531342712*a(n-22) -563527872936*a(n-24) +167881696044*a(n-26) -27388441192*a(n-28) +2145049440*a(n-30) -57784320*a(n-32) for n>33
EXAMPLE
Some solutions for n=3
..7..3..1....4..7..3....1..4..7....6.11..7....3..6..3...11..7..4....4..7.11
..3..7..4....1..3..1....4..7.12....3..6.11....7.11..6....7..4..2....7.11..7
..1..4..8....0..1..0....8.12..7....6.11..6...11..6.10...12..8..5...12..7.11
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2013
STATUS
approved