A000423 - cp's OEIS frontend

A000423 a(n) is smallest number > a(n-1) of form a(i)*a(j), i < j < n.

n	a(n)
1	2
2	3
3	6
4	12
5	18
6	24
7	36
8	48
9	54
10	72
11	96
12	108
13	144
14	162
15	192
16	216
17	288
18	324
19	384
20	432
21	486
22	576
23	648
24	768
25	864
26	972
27	1152
28	1296
29	1458
30	1536
31	1728
32	1944
33	2304
34	2592
35	2916
36	3072
37	3456
38	3888
39	4374
40	4608
41	5184
42	5832
43	6144
44	6912
45	7776
46	8748
47	9216
48	10368
49	11664

[2, 3, 6, 12, 18, 24, 36, 48, 54, 72, 96, 108, 144, 162, 192, 216, 288, 324, 384, 432, 486, 576, 648, 768, 864, 972, 1152, 1296, 1458, 1536, 1728, 1944, 2304, 2592, 2916, 3072, 3456, 3888, 4374, 4608, 5184, 5832, 6144, 6912, 7776, 8748, 9216, 10368, 11664]

cp's OEIS Frontend

A000423 a(n) is smallest number > a(n-1) of form a(i)*a(j), i < j < n.

Table of values

List of values