login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A323975 a(n) sets a new record for the Lychrel number a(n) of 'Reverse and Add' steps, needed to reach a Lychrel number m < a(n) (i.e., its seed). 1
195, 295, 4799, 10653, 10821, 14995, 105985, 1005523, 1008927, 1009413, 1029983 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Records in A323976.

Similar to the number of steps needed to reach a palindrome in the Reverse and Add! trajectories (see A065198 and A065199), the number of steps needed for a Lychrel number to reach the trajectory of its seed is relatively small.

LINKS

Table of n, a(n) for n=1..11.

CROSSREFS

Cf. A065198, A065199, A323976.

Sequence in context: A154938 A234100 A080394 * A055970 A158225 A080913

Adjacent sequences:  A323972 A323973 A323974 * A323976 A323977 A323978

KEYWORD

nonn,base,more

AUTHOR

A.H.M. Smeets, Feb 10 2019

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 20 20:16 EDT 2019. Contains 323426 sequences. (Running on oeis4.)