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A335591 Primes abs(A335581(k))/2^14 for k in A335582. 3
236821687, 1042169341, 824576219, 3936576629, 358825573, 14488357127, 85083966119, 31862900551, 18816350447, 50819969281, 38773854101, 52655522537, 1040940269, 379261901201, 309046612187, 428435406197, 2040640920173, 1956306006947, 1467786584689, 19138237171, 154667461493, 28186607929 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = abs(A335581(A335582(n)))/2^14.

EXAMPLE

A335582(3) = 151, A335581(151) = det(20897, 20963, 20261, 21191; 21673, 21419, 22157, 20431; 22961, 20947, 22229, 21559; 21977, 21499, 21149, 22271) = 13509856772096 = 2^14 * 824576219, so a(3) =

824576219.

MAPLE

N:= 100: # for a(1)..a(N)

count:= 0:

R:= NULL:

L:= [seq(2*i-33, i=1..16)]:

for k from 1 while count < N do

  for i from 1 to 16 do

   for x from L[i]+32 by 32 do until isprime(x);

   L[i]:= x;

  od;

  v:= abs(LinearAlgebra:-Determinant(Matrix(4, 4, L)))/2^14;

  if isprime(v) then count:= count+1; R:= R, v; fi;

od:

R;

CROSSREFS

Cf. A335581, A335582.

Sequence in context: A029831 A289981 A203885 * A234058 A064869 A016824

Adjacent sequences:  A335588 A335589 A335590 * A335592 A335593 A335594

KEYWORD

nonn,look

AUTHOR

J. M. Bergot and Robert Israel, Jan 26 2021

STATUS

approved

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Last modified October 16 03:52 EDT 2021. Contains 348035 sequences. (Running on oeis4.)