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A072293 Smallest factorial containing exactly n 2's. 1
2, 87178291200, 6227020800, 265252859812191058636308480000000, 815915283247897734345611269596115894272000000000, 258623241511168180642964355153611979969197632389120000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

a(2)=87178291200 so 87178291200 is the smallest factorial containing exactly two 2's.

CROSSREFS

Sequence in context: A105759 A154422 A154423 * A158343 A139180 A072947

Adjacent sequences:  A072290 A072291 A072292 * A072294 A072295 A072296

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Jul 30 2002

STATUS

approved

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Last modified May 24 21:38 EDT 2013. Contains 225631 sequences.