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A154760 Final digit of n!! (A006882). 0
1, 1, 2, 3, 8, 5, 8, 5, 4, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

For n>8: a(n)=0 if n is even, a(n)=5 if n is odd. [From Dmitry Kamenetsky, Jan 17 2009]

LINKS

Table of n, a(n) for n=0..118.

EXAMPLE

The final digit of n! is 1,2,6,4,0,0,0,0,0,0,0,0,0,...

CROSSREFS

Sequence in context: A284047 A265343 A268392 * A231817 A114340 A126102

Adjacent sequences:  A154757 A154758 A154759 * A154761 A154762 A154763

KEYWORD

nonn,base

AUTHOR

Kousaka Hideaki (kousaka(AT)d6.dion.ne.jp), Jan 15 2009

EXTENSIONS

Offset corrected, more terms added. - R. J. Mathar, Jan 18 2009

STATUS

approved

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Last modified April 18 11:07 EDT 2019. Contains 322209 sequences. (Running on oeis4.)