A126640 - cp's OEIS frontend

A126640 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digit 1 and 2, at least one of digits 3,4, at least one of digits 5,6 and at least one of digits 7,8,9.

n	a(n)
1	8
2	60
3	422
4	2784
5	17318
6	102600
7	584942
8	3237504
9	17516438
10	93136440
11	488625662
12	2537103024
13	13068059558
14	66890498280
15	340713533582
16	1728792901344
17	8745409322678
18	44134458900120
19	222306845468702
20	1118087142184464
21	5616691514201798
22	28188613237893960

[8, 60, 422, 2784, 17318, 102600, 584942, 3237504, 17516438, 93136440, 488625662, 2537103024, 13068059558, 66890498280, 340713533582, 1728792901344, 8745409322678, 44134458900120, 222306845468702, 1118087142184464, 5616691514201798, 28188613237893960]

cp's OEIS Frontend

A126640 a(n) is the number of integers k less than 10^n such that the decimal representation of k lacks the digit 1 and 2, at least one of digits 3,4, at least one of digits 5,6 and at least one of digits 7,8,9.

Table of values

List of values