a(n) = Sum_{d|n} tau(d)^d, where tau(n) is the number of divisors of n.
A344081
a(n) = Sum_{d|n} tau(d)^d, where tau(n) is the number of divisors of n.
Terms
- a(0) =1a(1) =5a(2) =9a(3) =86a(4) =33a(5) =4109a(6) =129a(7) =65622a(8) =19692a(9) =1048613a(10) =2049a(11) =2176786526a(12) =8193a(13) =268435589a(14) =1073741865a(15) =152587956247a(16) =131073a(18) =524289a(22) =8388609
External references
- oeis: A344081