A364040 - cp's OEIS frontend

A364040 a(n) is the least positive number with distinct decimal digits and n prime factors, counted with multiplicity, or -1 if there is no such number.

n	a(n)
0	1
1	2
2	4
3	8
4	16
5	32
6	64
7	128
8	256
9	512
10	1024
11	2048
12	4096
13	8192
14	16384
15	32768
16	98304
17	327680
18	917504
19	786432
20	1048576
21	3145728
22	15728640
23	31457280
24	2845310976
25	6398410752
26	-1
27	-1
28	-1
29	536870912

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 98304, 327680, 917504, 786432, 1048576, 3145728, 15728640, 31457280, 2845310976, 6398410752, -1, -1, -1, 536870912]

cp's OEIS Frontend

A364040 a(n) is the least positive number with distinct decimal digits and n prime factors, counted with multiplicity, or -1 if there is no such number.

Table of values

List of values