n = 4s(n) + 3s(s(n)) + 2s(s(s(n))) + 1

where n is a positive integer and s(n) denotes the sum of the digits of n. Also, determine analytically, all values of n that satisfy the equation.

Edited on February 26, 2007, 11:00 pm

Posted by hoodat on 2007-02-26 22:58:42