70619

Properties

Appears in sequences

• Numbers k such that 197*2^k+1 is prime.at n=17A032475
• Primes of the form n^3 + n^2 + 17, for nonnegative values of n.at n=28A050266
• Intersection of A013917 and A071150.at n=34A255017
• Number of 2 X 2 matrices with all elements in {0,...,n} and prime determinant.at n=32A281315
• a(n) = Sum_{k=1..n} binomial(2*n, n-k) * sigma(k).at n=7A356338
• Prime numbersat n=6996