OFFSET
1,2
COMMENTS
At present it is not known whether this sequence is finite or infinite.
LINKS
Rémy Sigrist, C program for A221182
PROG
(C) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
T. D. Noe and N. J. A. Sloane, Jan 15 2013
EXTENSIONS
More terms from Rémy Sigrist, Nov 06 2020
STATUS
approved