A337881 - cp's OEIS frontend

A337881 30a(n) - 1 is the least prime of the form 2^r3^s*5^t - 1, r > 0, s > 0, t > 0, r + s + t = n.

n	a(n)
3	1
4	2
5	6
6	8
7	16
8	48
9	96
10	432
11	384
12	512
13	2304
14	4608
15	23040
16	8192
17	24576
18	49152
19	65536
20	294912
21	655360
22	1310720
23	2621440
24	10616832
25	6291456
26	28311552
27	62914560
28	75497472
29	251658240
30	838860800
31	402653184
32	805306368
33	1073741824
34	12079595520
35	14495514624
36	65229815808

[1, 2, 6, 8, 16, 48, 96, 432, 384, 512, 2304, 4608, 23040, 8192, 24576, 49152, 65536, 294912, 655360, 1310720, 2621440, 10616832, 6291456, 28311552, 62914560, 75497472, 251658240, 838860800, 402653184, 805306368, 1073741824, 12079595520, 14495514624, 65229815808]

cp's OEIS Frontend

A337881 30a(n) - 1 is the least prime of the form 2^r3^s*5^t - 1, r > 0, s > 0, t > 0, r + s + t = n.

Table of values

List of values

cp's OEIS Frontend

A337881 30*a(n) - 1 is the least prime of the form 2^r*3^s*5^t - 1, r > 0, s > 0, t > 0, r + s + t = n.

Table of values

List of values

A337881 30a(n) - 1 is the least prime of the form 2^r3^s*5^t - 1, r > 0, s > 0, t > 0, r + s + t = n.