A118815 Determinants of 5 X 5 matrices consisting of 25 consecutive primes.

-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

Offset: 1

Author

Jonathan Vos Post, May 23 2006

Keywords

• easy
• sign

Comments

5 X 5 analog of A117330.

Examples

			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|.
		

Crossrefs

Cf. A000040, A067276, A117301, A117330, A118713.

Programs

PARI

a(n) = matdet(matrix(5,5,i,j,prime((n+j-1)+5*(i-1)))); \\ Michel Marcus, Jan 25 2021