A249734 - cp's OEIS frontend

A249734 Even bisection of A003961: Replace in 2n each prime factor p(k) with prime p(k+1).

n	a(n)
1	3
2	9
3	15
4	27
5	21
6	45
7	33
8	81
9	75
10	63
11	39
12	135
13	51
14	99
15	105
16	243
17	57
18	225
19	69
20	189
21	165
22	117
23	87
24	405
25	147
26	153
27	375
28	297
29	93
30	315
31	111
32	729
33	195
34	171
35	231
36	675
37	123
38	207
39	255
40	567
41	129
42	495
43	141
44	351
45	525
46	261
47	159
48	1215
49	363
50	441
51	285
52	459
53	177
54	1125
55	273
56	891
57	345
58	279
59	183
60	945
61	201
62	333
63	825
64	2187
65	357
66	585
67	213
68	513
69	435
70	693
71	219
72	2025
73	237
74	369

[3, 9, 15, 27, 21, 45, 33, 81, 75, 63, 39, 135, 51, 99, 105, 243, 57, 225, 69, 189, 165, 117, 87, 405, 147, 153, 375, 297, 93, 315, 111, 729, 195, 171, 231, 675, 123, 207, 255, 567, 129, 495, 141, 351, 525, 261, 159, 1215, 363, 441, 285, 459, 177, 1125, 273, 891, 345, 279, 183, 945, 201, 333, 825, 2187, 357, 585, 213, 513, 435, 693, 219, 2025, 237, 369]

cp's OEIS Frontend

A249734 Even bisection of A003961: Replace in 2n each prime factor p(k) with prime p(k+1).

Table of values

List of values