OFFSET
1,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = n*A017665(n). - Enrique Pérez Herrero, Aug 25 2011
MATHEMATICA
A009242[n_]:=LCM[DivisorSigma[1, n], n]; Array[A009242, 100] (* Enrique Pérez Herrero, Aug 25 2011 *)
PROG
(PARI) a(n) = lcm(n, sigma(n)); \\ Amiram Eldar, Mar 27 2024
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved