2265417

Appears in sequences

• Numbers n such that sigma(n - phi(n)) = phi(n + phi(n)).at n=29A074887
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,5,1,1,1,1,1 for x=0,1,2,3,4,5,6.at n=7A198040