OFFSET
1,2
COMMENTS
A055067(n) = the product of non-divisors of n.
FORMULA
a(n) = Sum_{i=1..n} A055067(i).
PROG
(Magma) [&+[Factorial(k) / &*[d: d in Divisors(k): k in [1..n]]: n in [1..100]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Jan 07 2017
STATUS
approved