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A306482 Records for the number of 'Reverse and Add' steps in base 2 needed for a Lychrel number to join the trajectory of a smaller Lychrel number (i.e., its seed). Record setting numbers in A306481. 1
0, 4, 5, 6, 9, 11, 17, 21, 22, 34, 52, 68, 83, 84, 91, 92, 98 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Record setting numbers in A306481.

Similar to the number of steps needed to reach a palindrome in the Reverse and Add! trajectories (see A066144 and A066145), the number of steps needed for a Lychrel number to reach the trajectory of its seed is relatively small.

Lychrel numbers in A066059; seeds in A075252 (for base 2).

LINKS

Table of n, a(n) for n=1..17.

CROSSREFS

Cf. A066059, A066144, A066145, A075252, A306481.

Sequence in context: A195993 A010456 A072496 * A047431 A288695 A182719

Adjacent sequences:  A306479 A306480 A306481 * A306483 A306484 A306485

KEYWORD

nonn,base,more

AUTHOR

A.H.M. Smeets, Feb 18 2019

STATUS

approved

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Last modified August 20 03:48 EDT 2019. Contains 326139 sequences. (Running on oeis4.)