847847

Appears in sequences

• Trajectory of 5 under map x->x + (x-with-digits-reversed).at n=14A033649
• Trajectory of 13 under map x->x + (x-with-digits-reversed).at n=11A033652
• Trajectory of 17 under map x->x + (x-with-digits-reversed).at n=10A033654
• Trajectory of 31 under map x->x + (x-with-digits-reversed).at n=11A033661
• Trajectory of 79 under map x->x + (x-with-digits-reversed).at n=9A033673
• After a(1) = 1, the sequence is always extended with the smallest divisor d (not yet present in the sequence) of the last term t. If d doesn't exist, we extend the sequence with tt (t concatenated to itself). If tt doesn't produce a new d, we extend the sequence with ttt, etc. See the Comments section for more details.at n=46A348871