Iterations of k -> k+tau(k) from 2(2n-1)^2 until result not divisible by 4
2, 3, 3, 3, 2, 3, 7, 2, 3, 6, 2, 9, 3, 2, 10, 3, 2, 2, 5, 7, 3, 4, 7, 10, 5, 5, 10, 8, 2, 7, 3, 8, 7
1 seqfan posts
Mon Sep 21 14:30:57 CEST 2009 [seqfan] The mapping k -> k + tau(k)