A380359 - cp's OEIS frontend

A380359 a(n) is the number of integers in base n such that all the integers given by their first k digits are divisible by k and which cannot be extended further.

n	a(n)
2	1
3	3
4	8
5	21
6	54
7	145
8	367
9	1039
10	2492
11	6709
12	16799
13	46610
14	95597
15	368134
16	831886
17	2245056
18	6084180
19	15798495
20	41456343
21	119786906
22	292818176
23	788255058
24	2061079489
25	5753392327
26	14984432350

[1, 3, 8, 21, 54, 145, 367, 1039, 2492, 6709, 16799, 46610, 95597, 368134, 831886, 2245056, 6084180, 15798495, 41456343, 119786906, 292818176, 788255058, 2061079489, 5753392327, 14984432350]

cp's OEIS Frontend

A380359 a(n) is the number of integers in base n such that all the integers given by their first k digits are divisible by k and which cannot be extended further.

Table of values

List of values