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A060323 The first n digits of n! form a prime number. 0
43, 93, 808, 2057, 3247, 13557 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The primality of a(4)! was established by Andrey V. Kulsha and Peter Liaskovsky (ALTAIR(AT)tut.by).

a(7) > 30000. [From Donovan Johnson, Mar 29 2010]

LINKS

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

CROSSREFS

Sequence in context: A306114 A044181 A044562 * A141958 A141990 A253952

Adjacent sequences:  A060320 A060321 A060322 * A060324 A060325 A060326

KEYWORD

base,hard,nonn

AUTHOR

G. L. Honaker, Jr., Mar 29 2001

EXTENSIONS

a(5)-a(6) from Donovan Johnson, Mar 29 2010

STATUS

approved

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Last modified January 24 10:42 EST 2020. Contains 331193 sequences. (Running on oeis4.)