OFFSET
0,1
COMMENTS
Subsequence of A023108.
EXAMPLE
The trajectory of 12543 reaches 47064 in one step and 47064 is a term in the trajectory of 10563, so 12543 belongs to the present sequence. The corresponding term in A063065, giving the number of steps, accordingly is 1.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Klaus Brockhaus, Jul 07 2001
STATUS
approved