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A118815 Determinants of 5 X 5 matrices consisting of 25 consecutive primes. 2

%I #17 Jan 25 2021 04:26:13

%S -4656,1440,2912,2832,-10464,-768,-17376,20384,-72976,-18944,12672,

%T 41184,-199776,28944,-21104,3552,25488,338448,-60192,39952,-21792,

%U -161904,499488,-83424,-7440,7440,-54288,-75456,1641792,42288

%N Determinants of 5 X 5 matrices consisting of 25 consecutive primes.

%C 5 X 5 analog of A117330.

%e a(1) = -4656 =

%e | 2 3 5 7 11|

%e |13 17 19 23 29|

%e |31 37 41 43 47|

%e |53 59 61 67 71|

%e |73 79 83 89 97|.

%o (PARI) a(n) = matdet(matrix(5,5,i,j,prime((n+j-1)+5*(i-1)))); \\ _Michel Marcus_, Jan 25 2021

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

%K easy,sign

%O 1,1

%A _Jonathan Vos Post_, May 23 2006

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Last modified August 4 06:09 EDT 2024. Contains 374905 sequences. (Running on oeis4.)