login
A082142
Duplicate of A069723.
0
1, 2, 12, 80, 560, 4032, 29568, 219648, 1647360, 12446720, 94595072, 722362368
OFFSET
1,2
CROSSREFS
Sequence in context: A270775 A240836 A270919 * A069723 A063481 A274782
KEYWORD
dead
STATUS
approved