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A259706
a(n) = Sum_k k*A259707(n,k).
1
0, 0, 2, 16, 160, 1440, 15120
OFFSET
2,3
REFERENCES
A. Sade, Sur les Chevauchements des Permutations, published by the author, Marseille, 1949. See Section 42.
LINKS
Albert Sade, Sur les Chevauchements des Permutations, published by the author, Marseille, 1949. [Annotated scanned copy]
CROSSREFS
Cf. A259707.
Sequence in context: A012387 A009518 A052674 * A309440 A226012 A011552
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jul 05 2015
STATUS
approved