A280713 - OEIS

%I #6 Sep 08 2022 08:46:18

%S 1,2,4,7,31,51,771,1401,14841,51129,3679929,3957129,482958729,

%T 927745929,6739632009,27172044009,20949961932009,22047762636009,

%U 6424421468364009,6728534219386089,122581010799226089,2444896564058746089,1126445624341666426089

%N Partial sums of A055067 where A055067(n) is the product of non-divisors of n.

%C A055067(n) = the product of non-divisors of n.

%F a(n) = Sum_{i=1..n} A055067(i).

%o (Magma) [&+[Factorial(k) / &*[d: d in Divisors(k): k in [1..n]]: n in [1..100]]

%Y Cf. A055067, A280714.

%K nonn

%O 1,2

%A _Jaroslav Krizek_, Jan 07 2017