OFFSET
1,2
COMMENTS
All terms so far enter the cycle of length 81, cf. A117521. - Klaus Brockhaus, Jun 12 2006
LINKS
Rémy Sigrist, C program
N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
PROG
(C) See Links section.
(Python) # See linked program in A118514.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 06 2006
EXTENSIONS
a(10) to a(25) from Klaus Brockhaus, Jun 12 2006
a(26) to a(32) from Rémy Sigrist, Aug 13 2022
STATUS
approved