A075687 - OEIS

A075687

In base 4, records for the number of Reverse and Add! steps needed to reach a palindrome.

0, 1, 2, 3, 4, 5, 16, 17, 29, 35, 37, 38, 79, 80, 107

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

COMMENTS

RECORDS transform of A075685. Base-4 analog of A065199 (base 10) and A066145 (base 2). A075686 gives the corresponding starting points.

LINKS

N. J. A. Sloane, Transforms

EXAMPLE

Starting with 26, 3 Reverse and Add! steps are needed to reach a palindrome; starting with n < 26, less (at most 2) steps are needed.

CROSSREFS

KEYWORD

base,more,nonn

AUTHOR

STATUS

approved