login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064493 List of distinct greatest common divisors of { k! and k! - (k-1)! + (k-2)! - ... + (-1)^k*0!, k = 0 .. n}. 0
1, 2, 4, 20, 260, 9620, 4454060 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Records in the sequence gcd(k,A058006(k)). The record indices are products of primes from A064384. There are no further terms unless there are terms in A064384 larger than 463. - Max Alekseyev, Jul 06 2010

LINKS

Table of n, a(n) for n=0..6.

CROSSREFS

Cf. A000142, A058006, A064383, A064384, A005165.

Sequence in context: A061348 A127103 A059831 * A145614 A145626 A228808

Adjacent sequences:  A064490 A064491 A064492 * A064494 A064495 A064496

KEYWORD

hard,more,nonn

AUTHOR

Vladeta Jovovic, Oct 04 2001

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 7 09:16 EDT 2020. Contains 336274 sequences. (Running on oeis4.)