43704

Appears in sequences

• Number of 2 X 2 matrices with all elements in {0,1,...,n} and nonnegative even determinant.at n=18A210371
• Consider all 3 X 3 matrices M whose entries are the n-th to (n+8)-th primes prime(n), ..., prime(n+8), in any order. a(n) is the sum of the number of M such that det(M) is divisible by prime(n+i), for i from 0 to 8.at n=16A339105