73870

Appears in sequences

• Number of nonempty subsets of {1, 2, ..., n} with <=6 pairwise coprime elements.at n=37A187267
• Number of (n+1) X (4+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=11A250765