209173

Properties

Appears in sequences

• Triangle read by rows: row n (n>=2) gives a set of n primes such that the averages of all subsets are distinct primes, having the smallest largest element.at n=9A113833
• G.f. A(x) satisfies: 1 = Sum_{n>=0} (-1)^n * x^(n*(n+1)/2) * ((1+x)^n + A(x))^(n+1).at n=11A341341
• Prime numbersat n=18729