A118296 Start with 21 and repeatedly reverse the digits and add 1 to get the next term.

21, 13, 32, 24, 43, 35, 54, 46, 65, 57, 76, 68, 87, 79, 98, 90, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6

Offset: 1

Author

Luc Stevens (lms022(AT)yahoo.com), May 14 2006

Keywords

• base
• nonn
• easy

Comments

After 17 steps enters a cycle of length 9.

Links

• N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
• Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,1).

Crossrefs

Cf. A118551.

Essentially the same as A118513.

Extensions

New a(13)=87 inserted by Georg Fischer, Jul 17 2020