69581

Appears in sequences

• Numbers k such that 3^k - 2 is prime.at n=29A014224
• a(n) = A322893(n) / (n*(n+1)/2), where A322893(n) = [x^(n-1)] Product_{k=1..n} (k + x + 2*k*x^2), for n >= 1.at n=6A322894