OFFSET
1,2
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
PROG
(Haskell)
a264810 n = a264810_list !! (n-1)
a264810_list = scanl1 (+) a264739_list
(PARI) first(n)=my(s); vector(n, k, s+=istotient(k)) \\ Charles R Greathouse IV, Sep 02 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 26 2015
STATUS
approved