OFFSET
1,2
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = A158333(n-1) for n<73. - R. J. Mathar, Sep 01 2014
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Aug 25 2014
STATUS
approved