A320323 - cp's OEIS frontend

A320323 Numbers whose product of prime indices (A003963) is a perfect power and where each prime index has the same number of prime factors, counted with multiplicity.

n	a(n)
1	7
2	9
3	19
4	23
5	25
6	27
7	49
8	53
9	81
10	97
11	103
12	121
13	125
14	131
15	151
16	161
17	169
18	225
19	227
20	243
21	289
22	311
23	343
24	361
25	419
26	529
27	541
28	625
29	661
30	679
31	691
32	719
33	729
34	827
35	841
36	961
37	1009
38	1089
39	1127
40	1159
41	1183
42	1193
43	1321
44	1331
45	1369
46	1427
47	1543
48	1589
49	1619
50	1681
51	1849

[7, 9, 19, 23, 25, 27, 49, 53, 81, 97, 103, 121, 125, 131, 151, 161, 169, 225, 227, 243, 289, 311, 343, 361, 419, 529, 541, 625, 661, 679, 691, 719, 729, 827, 841, 961, 1009, 1089, 1127, 1159, 1183, 1193, 1321, 1331, 1369, 1427, 1543, 1589, 1619, 1681, 1849]

cp's OEIS Frontend

A320323 Numbers whose product of prime indices (A003963) is a perfect power and where each prime index has the same number of prime factors, counted with multiplicity.

Table of values

List of values