a(1) = a(2) = 1; for n > 2, a(n) is the smallest positive number that has the same number of divisors as the sum a(n-2) + a(n-1).
A355649
a(1) = a(2) = 1; for n > 2, a(n) is the smallest positive number that has the same number of divisors as the sum a(n-2) + a(n-1).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =6a(6) =6a(7) =12a(8) =12a(9) =24a(10) =36a(11) =60a(12) =60a(13) =120a(14) =180a(15) =180a(16) =360a(17) =360a(18) =720a(19) =840a(20) =840a(21) =1680a(22) =2520a(23) =2520a(24) =5040a(25) =7560a(26) =10080a(27) =10080a(28) =20160a(29) =27720
External references
- oeis: A355649