OFFSET
1,1
LINKS
Alex V. Breger, Table of n, a(n) for n = 1..1000
Vaclav Kotesovec, Non-attacking chess pieces
Vaclav Kotesovec, Generating function
FORMULA
Recurrence order is 548.
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Sep 22 2011
STATUS
approved