a(n) = is the smallest number such the difference between a(n) and the sum of the square of his digits is n, or 0 if no such number exists.
1, 35, 0, 13, 24, 55, 0, 12, 0, 10, 23, 0, 44, 54, 22, 33, 20, 0, 43, 32, 0, 30, 42, 52, 40
3 seqfan posts
Tue Mar 30 11:22:26 CEST 2010 [seqfan] b174593.txt from Zak Seidov