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A004733 Denominator of n!!/(n+3)!!. 2
3, 8, 15, 16, 105, 128, 315, 256, 3465, 1024, 9009, 2048, 45045, 32768, 109395, 65536, 2078505, 262144, 4849845, 524288, 22309287, 4194304, 50702925, 8388608, 456326325, 33554432, 1017958725, 67108864 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

S. Janson, On the traveling fly problem, Graph Theory Notes of New York, Vol. XXXI, 17, 1996.

LINKS

Table of n, a(n) for n=0..27.

CROSSREFS

Cf. A004732.

Cf. A001801.

Sequence in context: A208436 A135872 A045263 * A051210 A191773 A163603

Adjacent sequences:  A004730 A004731 A004732 * A004734 A004735 A004736

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 22 00:16 EDT 2013. Contains 225508 sequences.