a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks at least one of digits 1,2,3, at least one of digits 4,5,6 and at least one of digits 7,8,9.
A125948
a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks at least one of digits 1,2,3, at least one of digits 4,5,6 and at least one of digits 7,8,9.
Terms
- a(0) =10a(1) =100a(2) =982a(3) =9388a(4) =86950a(5) =778780a(6) =6748822a(7) =56713708a(8) =463661830a(9) =3700940860a(10) =28941318262a(11) =222422713228
External references
- oeis: A125948