2595782

Appears in sequences

• a(0) = a(1) = 1; for n > 0, a(n+1) = a(n)*(a(0) + ... + a(n-1)) + a(n)*(a(n) + 1)/2.at n=6A002658
• Number of products of distinct elements in generation n, starting with two elements.at n=6A103410