Number of n-digit primes beginning with n.

Terms

a(0) =0a(1) =2a(2) =16a(3) =119a(4) =924a(5) =7445a(6) =63129a(7) =547572a(8) =4838319a(9) =4814936a(10) =43167234a(11) =391378851a(12) =3580266494a(13) =32997926272a(14) =306051434210