557383680

Appears in sequences

• a(1) = 1; for n>1, a(n) = Sum_{i=1..n-1} a(i)*prime(i).at n=9A109664
• Terms of A110142 at positions p(n)+1, where p(n) = A000041(n) is the number of partitions of n; a(n) = A110142(p(n)+1) for n>=1, with a(0) = 1.at n=20A110144
• For n > 2 , a(n) = a(n-2) + lcm(a(n-2), n-1) with a(1)=2, a(2)=2.at n=19A217662
• Maximum size of a main class for diagonal Latin squares of order n.at n=8A299787
• a(0) = 1; for n > 0, a(n) = (prime(n)^2 - 1) * a(n-1).at n=6A318766