Number of strings of n decimal digits that contain at least one string of exactly 9 consecutive "0" digits.

A255379

Number of strings of n decimal digits that contain at least one string of exactly 9 consecutive "0" digits.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =1a(10) =18a(11) =261a(12) =3420a(13) =42300a(14) =504000a(15) =5850000a(16) =66600000a(17) =747000000a(18) =8280000000a(19) =90899999991a(20) =989999999757

External references