180285

Appears in sequences

• Number of nonempty subsets of {1, 2, ..., n} with <=10 pairwise coprime elements.at n=36A187271
• a(n) equals the coefficient of x^n in Sum_{m>=0} (x^m + 5 + 1/x^m)^m for n >= 1.at n=6A316595
• a(n) = Sum_{k=0..n} 3^(n-k) * binomial(n+1,k+1) * binomial(2*k+2,k+2).at n=6A387278