Number of positive integers with n digits that are the product of two integers greater than 1 and ending with 1.
A346509
Number of positive integers with n digits that are the product of two integers greater than 1 and ending with 1.
Terms
- a(0) =0a(1) =0a(2) =12a(3) =200a(4) =2660a(5) =31850a(6) =361985a(7) =3982799a(8) =42914655a(9) =455727689a(10) =4788989458a(11) =49930700093a(12) =517443017072
External references
- oeis: A346509