Let b(n)=product of exponents of prime factorization of n. Sequence gives palindromes n such that b(n) is also palindromic and sets a new record.

A085631

Let b(n)=product of exponents of prime factorization of n. Sequence gives palindromes n such that b(n) is also palindromic and sets a new record.

Terms

    a(0) =1a(1) =4a(2) =8a(3) =252a(4) =2112a(5) =4224a(6) =8448a(7) =29592a(8) =6547456a(9) =27011072a(10) =291080192a(11) =276444444672

External references