OFFSET
1,1
LINKS
N. J. A. Sloane, Table of n, a(n) for n = 1..12137
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 26 2014
EXTENSIONS
Typo in definition corrected by Arkadiusz Wesolowski, Nov 16 2014
STATUS
approved