122728

Appears in sequences

• Number of terms in 6th derivative of a function composed with itself n times.at n=22A022816
• Structured meta-prism numbers, the n-th number from a structured n-gonal prism number sequence.at n=22A100177
• Partial sums of cupolar numbers (1/3)*(n+1)*(5*n^2+7*n+3) (A096000).at n=22A117066
• a(n) is the sum of all products of pairs of numbers joined by the diagonals of an n-gon when its vertices are numbered from 1 to n in order.at n=31A337130
• a(n) = Sum_{i|n, j|n, k|n} i*j*k/gcd(i,j,k).at n=29A344133