A125947 - cp's OEIS frontend

A125947 a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks the digit 1, at least one of digits 2,3,4,5 and at least one of digits 6,7,8,9.

n	a(n)
1	9
2	81
3	729
4	6513
5	57369
6	495921
7	4194969
8	34689393
9	280607769
10	2224214961
11	17313344409
12	132651929073
13	1002605145369
14	7490229758001
15	55407572177049
16	406450276733553
17	2960529995462169
18	21435301615525041
19	154414691892116889
20	1107604165960750833

[9, 81, 729, 6513, 57369, 495921, 4194969, 34689393, 280607769, 2224214961, 17313344409, 132651929073, 1002605145369, 7490229758001, 55407572177049, 406450276733553, 2960529995462169, 21435301615525041, 154414691892116889, 1107604165960750833]

cp's OEIS Frontend

A125947 a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks the digit 1, at least one of digits 2,3,4,5 and at least one of digits 6,7,8,9.

Table of values

List of values