A126643 - cp's OEIS frontend

A126643 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digits 1,2,3,4, at least one of digits 5,6 and at least one of digits 7,8,9.

n	a(n)
1	6
2	34
3	180
4	886
5	4116
6	18334
7	79260
8	335446
9	1398276
10	5765134
11	23581740
12	95900806
13	388345236
14	1567647934
15	6313474620
16	25382710966
17	101917608996
18	408831386734
19	1638809709900
20	6565693949926
21	26294146373556
22	105270707701534
23	421365218399580

[6, 34, 180, 886, 4116, 18334, 79260, 335446, 1398276, 5765134, 23581740, 95900806, 388345236, 1567647934, 6313474620, 25382710966, 101917608996, 408831386734, 1638809709900, 6565693949926, 26294146373556, 105270707701534, 421365218399580]

cp's OEIS Frontend

A126643 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digits 1,2,3,4, at least one of digits 5,6 and at least one of digits 7,8,9.

Table of values

List of values