A328589 - cp's OEIS frontend

A328589 Numbers n that are multiples of 6 and for which A257993(A276086(A276086(n))) is larger than A257993(n), where A276086 converts the primorial base expansion of n into its prime product form, and A257993 returns the index of the least prime not present in its argument.

n	a(n)
1	240
2	270
3	300
4	330
5	360
6	390
7	630
8	660
9	690
10	720
11	750
12	780
13	810
14	1050
15	1080
16	1110
17	1140
18	1170
19	1200
20	1230
21	1500
22	1530
23	1560
24	1590
25	1620
26	1650
27	1890
28	1920
29	1950
30	1980
31	2010
32	2040
33	2070
34	2550
35	2580
36	2610
37	2640
38	2670
39	2700
40	2940
41	2970
42	3000
43	3030
44	3060
45	3090
46	3120
47	3360
48	3390
49	3420
50	3450
51	3480
52	3510
53	3540
54	3810
55	3840
56	3870
57	3900
58	3930
59	3960
60	4200

[240, 270, 300, 330, 360, 390, 630, 660, 690, 720, 750, 780, 810, 1050, 1080, 1110, 1140, 1170, 1200, 1230, 1500, 1530, 1560, 1590, 1620, 1650, 1890, 1920, 1950, 1980, 2010, 2040, 2070, 2550, 2580, 2610, 2640, 2670, 2700, 2940, 2970, 3000, 3030, 3060, 3090, 3120, 3360, 3390, 3420, 3450, 3480, 3510, 3540, 3810, 3840, 3870, 3900, 3930, 3960, 4200]

cp's OEIS Frontend

A328589 Numbers n that are multiples of 6 and for which A257993(A276086(A276086(n))) is larger than A257993(n), where A276086 converts the primorial base expansion of n into its prime product form, and A257993 returns the index of the least prime not present in its argument.

Table of values

List of values