A125630 - cp's OEIS frontend

A125630 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digit 1 and at least one of digits 2,3,4,5,6,7,8,9.

n	a(n)
1	9
2	81
3	729
4	6561
5	59049
6	531441
7	4782969
8	43006401
9	385606089
10	3440214801
11	30482931609
12	267934415841
13	2334817386729
14	20170171738161
15	172797111134649
16	1468818073594881
17	12396189742824969
18	103943773544221521
19	866556801437680089
20	7187319207979903521

[9, 81, 729, 6561, 59049, 531441, 4782969, 43006401, 385606089, 3440214801, 30482931609, 267934415841, 2334817386729, 20170171738161, 172797111134649, 1468818073594881, 12396189742824969, 103943773544221521, 866556801437680089, 7187319207979903521]

cp's OEIS Frontend

A125630 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digit 1 and at least one of digits 2,3,4,5,6,7,8,9.

Table of values

List of values