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A189509
Column 3 of triangle in A189507.
1
1, 6, 65, 701, 9324, 138016, 2325740, 43448940, 897020784, 20241273264
OFFSET
2,2
CROSSREFS
Cf. A189507.
Sequence in context: A350946 A297516 A099343 * A360977 A376087 A243698
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 23 2011
EXTENSIONS
Added missing term for n=9, Anthony Labarre, Feb 14 2013
STATUS
approved