a(1) = 1; a(n) = smallest palindromic number of the form k*a(n-1) + 1 with k > 1.
A069505
a(1) = 1; a(n) = smallest palindromic number of the form k*a(n-1) + 1 with k > 1.
Terms
- a(0) =1a(1) =3a(2) =7a(3) =22a(4) =111a(5) =1111a(6) =11111a(7) =111111a(8) =1111111a(9) =11111111a(10) =111111111a(11) =1111111111a(12) =11111111111a(13) =111111111111
External references
- oeis: A069505