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A068201 One of a family of sequences that interpolates between the Bell numbers and the factorials. 3
1, 2, 6, 24, 120, 720, 4920, 37320, 309120, 2763720, 26440920 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

G. Labelle et al., Stirling numbers interpolation using permutations with forbidden subsequences, Discrete Math. 246 (2002), 177-195.

LINKS

Table of n, a(n) for n=0..10.

CROSSREFS

Cf. A000110, A001861, A068199, A068200, this, ..., A000142.

Sequence in context: A177546 A177544 A177540 * A189848 A189285 A177545

Adjacent sequences:  A068198 A068199 A068200 * A068202 A068203 A068204

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 23 2002

STATUS

approved

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Last modified September 26 01:25 EDT 2017. Contains 292500 sequences.