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A037919
Trajectory of 4 under prime factor concatenation procedure.
1
4, 2, 2, 2, 11, 211
OFFSET
0,1
LINKS
EXAMPLE
May be regarded as the rows of an irregular triangle:
4
2 2
2 11
211. - N. J. A. Sloane, Jun 15 2022
CROSSREFS
Cf. A037273.
Sequence in context: A364686 A341859 A058634 * A049849 A376129 A112349
KEYWORD
fini,full,nonn,tabf,base
AUTHOR
EXTENSIONS
Edited by Charles R Greathouse IV, Apr 30 2010
STATUS
approved