196080

Appears in sequences

• Numbers k for which phi(k) + anti-phi(k) = k.at n=36A066418
• Triangular matrix, read by rows, that satisfies: T(n,k) = [T^4](n-1,k) when n>k>=0, with T(n,n) = (n+1).at n=11A102101
• Column 1 of triangular matrix A102101, which shifts upward to exclude the main diagonal under matrix fourth power.at n=4A102103