|
|
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
|
|
|
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
|
|
|
KEYWORD
|
easy,sign
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|