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

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

Table of n, a(n) for n=0..14.

N. J. A. Sloane, Transforms

Index entries for sequences related to Reverse and Add!

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

Cf. A065199, A066145, A075685, A075686.

Sequence in context: A132705 A177334 A004834 * A283526 A293824 A095181

Adjacent sequences: A075684 A075685 A075686 * A075688 A075689 A075690

Keyword

base,more,nonn

Author

Klaus Brockhaus, Sep 24 2002

Status

approved