A045968 - cp's OEIS frontend

A045968 a(1)=5; for n >= 2, if n = Product p_i^e_i, then a(n) = Product p_{i+3}^e_i.

n	a(n)
1	5
2	7
3	11
4	49
5	13
6	77
7	17
8	343
9	121
10	91
11	19
12	539
13	23
14	119
15	143
16	2401
17	29
18	847
19	31
20	637
21	187
22	133
23	37
24	3773
25	169
26	161
27	1331
28	833
29	41
30	1001
31	43
32	16807
33	209
34	203
35	221
36	5929
37	47
38	217
39	253
40	4459
41	53
42	1309
43	59
44	931
45	1573
46	259
47	61
48	26411
49	289
50	1183
51	319
52	1127
53	67
54	9317
55	247

[5, 7, 11, 49, 13, 77, 17, 343, 121, 91, 19, 539, 23, 119, 143, 2401, 29, 847, 31, 637, 187, 133, 37, 3773, 169, 161, 1331, 833, 41, 1001, 43, 16807, 209, 203, 221, 5929, 47, 217, 253, 4459, 53, 1309, 59, 931, 1573, 259, 61, 26411, 289, 1183, 319, 1127, 67, 9317, 247]

cp's OEIS Frontend

A045968 a(1)=5; for n >= 2, if n = Product p_i^e_i, then a(n) = Product p_{i+3}^e_i.

Table of values

List of values