Number of strings of n decimal digits that contain at least one string of exactly 7 consecutive "0" digits.

A255377

Number of strings of n decimal digits that contain at least one string of exactly 7 consecutive "0" digits.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =18a(9) =261a(10) =3420a(11) =42300a(12) =504000a(13) =5850000a(14) =66600000a(15) =746999991a(16) =8279999757a(17) =90899995383a(18) =989999925399

External references