Numbers n such that the product of their proper divisors is a palindrome > 1 and not equal to n.
A229970
Numbers n such that the product of their proper divisors is a palindrome > 1 and not equal to n.
Terms
- a(0) =4a(1) =9a(2) =25a(3) =49a(4) =121a(5) =212a(6) =1001a(7) =2636a(8) =10201a(9) =17161a(10) =22801a(11) =32761a(12) =36481a(13) =97969a(14) =110011a(15) =124609a(16) =139129a(17) =146689a(18) =528529a(19) =573049a(20) =619369a(21) =635209a(22) =844561a(23) =863041a(24) =1100011a(25) =10100101a(26) =11000011a(27) =101000101a(28) =106110601a(29) =110000011
External references
- oeis: A229970