a(1) = 1, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

A083147

a(1) = 1, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =232a(5) =464a(6) =42224a(7) =84448a(8) =4053504a(9) =44588544a(10) =4057557504

External references