a(n) = Sum_{k=1..n} tau(gcd(k,n))^gcd(k,n), where tau(n) is the number of divisors of n.
A344194
a(n) = Sum_{k=1..n} tau(gcd(k,n))^gcd(k,n), where tau(n) is the number of divisors of n.
Terms
- a(0) =1a(1) =5a(2) =10a(3) =87a(4) =36a(5) =4114a(6) =134a(7) =65629a(8) =19705a(9) =1048628a(10) =2058a(11) =2176786622a(12) =8204a(13) =268435614a(14) =1073741928a(15) =152587956347a(16) =131088a(18) =524306a(22) =8388630a(24) =847288609591
External references
- oeis: A344194