33740

Appears in sequences

• a(n) = 2*(A056855(n)) /(phi(n)*n), where phi() is the Euler phi function.at n=14A099940
• Coefficient triangle for polynomials used for e.g.f.s for unsigned Stirling1 diagonals.at n=23A112486
• Third column of triangle A112486 used for e.g.f.s of |Stirling1| = |A008275| diagonals.at n=4A112488
• Number of n X n 0..2 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.at n=3A201425
• Number of nX4 0..2 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.at n=3A201428
• T(n,k)=Number of nXk 0..2 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.at n=24A201432