Number of iterations of Reverse and Add which lead to a palindrome, or -1 if no palindrome is ever reached.
1, 1, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1
1 seqfan posts
Tue Jan 3 23:21:30 CET 2012 [seqfan] A030547 reverse-add steps offset