A306599 In base 8: a(n) sets a new record for the number of Reverse and Add! steps needed to reach a palindrome starting with a(n).

0, 8, 15, 39, 47, 109, 375, 1591, 4470, 4596, 6393, 6718, 7930, 16439, 28903, 34292, 49465, 264496, 265750, 266126, 311290, 2067455, 16808764, 18276328, 1074296036, 1075478361

Offset: 0

Author

A.H.M. Smeets, Feb 27 2019

Keywords

• nonn
• base
• more

Comments

It is conjectured that if a Reverse and Add! trajectory reaches a palindrome, it will be reached in relatively few steps, or otherwise it will never reach a palindrome. - A.H.M. Smeets, May 30 2019

Crossrefs

Records in A306600.

Base 10: A065198 and A065199.

Extensions

a(21)-a(25) from A.H.M. Smeets, May 30 2019