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A259706 a(n) = Sum_k k*A259707(n,k). 1
0, 0, 2, 16, 160, 1440, 15120 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

REFERENCES

A. Sade, Sur les Chevauchements des Permutations, published by the author, Marseille, 1949. See Section 42.

LINKS

Table of n, a(n) for n=2..8.

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

Adjacent sequences:  A259703 A259704 A259705 * A259707 A259708 A259709

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 05 2015

STATUS

approved

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Last modified September 26 20:36 EDT 2020. Contains 337374 sequences. (Running on oeis4.)