login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A290117
Primes of the form k! / 4 - 1.
1
5, 29, 179, 1259, 10079, 907199, 326918591999, 1600593426431999, 6463004184721244159999
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
LINKS
Robert Price,
Table of n, a(n) for n = 1..9
Joe McLean,
Interesting Sources of Probable Primes
OpenPFGW Project,
Primality Tester
FORMULA
a(n) = (
A139199
(n)!-4)/4.
MATHEMATICA
Select[Table[i! / 4 - 1, {i, 4, 100}], PrimeQ[#]&]
CROSSREFS
Cf.
A139174
,
A139199
.
Sequence in context:
A163073
A190802
A139174
*
A153296
A194723
A190917
Adjacent sequences:
A290114
A290115
A290116
*
A290118
A290119
A290120
KEYWORD
nonn
AUTHOR
Robert Price
, Jul 19 2017
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified August 3 23:57 EDT 2024. Contains 374905 sequences. (Running on oeis4.)