login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A118815 Determinants of 5 X 5 matrices consisting of 25 consecutive primes. 2
-4656, 1440, 2912, 2832, -10464, -768, -17376, 20384, -72976, -18944, 12672, 41184, -199776, 28944, -21104, 3552, 25488, 338448, -60192, 39952, -21792, -161904, 499488, -83424, -7440, 7440, -54288, -75456, 1641792, 42288 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
5 X 5 analog of A117330.
LINKS
EXAMPLE
a(1) = -4656 =
| 2 3 5 7 11|
|13 17 19 23 29|
|31 37 41 43 47|
|53 59 61 67 71|
|73 79 83 89 97|.
PROG
(PARI) a(n) = matdet(matrix(5, 5, i, j, prime((n+j-1)+5*(i-1)))); \\ Michel Marcus, Jan 25 2021
CROSSREFS
Sequence in context: A031615 A122713 A235235 * A235183 A069646 A159220
KEYWORD
easy,sign
AUTHOR
Jonathan Vos Post, May 23 2006
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 April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)