A068795 - cp's OEIS frontend

A068795 In prime factorization of n replace all primes with the greatest prime factor of n; a(1)=1.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	7
8	8
9	9
10	25
11	11
12	27
13	13
14	49
15	25
16	16
17	17
18	27
19	19
20	125
21	49
22	121
23	23
24	81
25	25
26	169
27	27
28	343
29	29
30	125
31	31
32	32
33	121
34	289
35	49
36	81
37	37
38	361
39	169
40	625
41	41
42	343
43	43
44	1331
45	125
46	529
47	47
48	243
49	49
50	125
51	289
52	2197
53	53
54	81
55	121
56	2401
57	361
58	841
59	59
60	625
61	61

[1, 2, 3, 4, 5, 9, 7, 8, 9, 25, 11, 27, 13, 49, 25, 16, 17, 27, 19, 125, 49, 121, 23, 81, 25, 169, 27, 343, 29, 125, 31, 32, 121, 289, 49, 81, 37, 361, 169, 625, 41, 343, 43, 1331, 125, 529, 47, 243, 49, 125, 289, 2197, 53, 81, 121, 2401, 361, 841, 59, 625, 61]

cp's OEIS Frontend

A068795 In prime factorization of n replace all primes with the greatest prime factor of n; a(1)=1.

Table of values

List of values