OFFSET
1,3
LINKS
Juri-Stepan Gerasimov, Table of n, a(n) for n = 1..59
EXAMPLE
8 is in this sequence because (3^3 - 3)/3 = 8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Sep 07 2014
STATUS
approved