OFFSET
1,1
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..20000 (first 1000 terms from Harry J. Smith)
FORMULA
EXAMPLE
a(5) = (5 * -1) + 5 = 0 because mu(5)= -1.
MAPLE
with(numtheory): seq(n*(mobius(n)+1), n=1..80); # Muniru A Asiru, Jul 01 2018
MATHEMATICA
Array[# (MoebiusMu[#] + 1) &, 75] (* Michael De Vlieger, Jul 01 2018 *)
PROG
(PARI) for(n=1, 20, print(n*moebius(n)+n))
(PARI) { for (n=1, 1000, write("b061669.txt", n, " ", n*moebius(n) + n) ) } \\ Harry J. Smith, Jul 26 2009
(PARI) A061669(n) = (n*(1+moebius(n))); \\ Antti Karttunen, May 03 2022
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Jason Earls, Jun 16 2001
EXTENSIONS
More terms from Dean Hickerson, Jul 24 2001
STATUS
approved