A369663 - cp's OEIS frontend

A369663 Numbers k of the form 4m+3, whose arithmetic derivative k' is of the form 4u+2, and k' has an even number of prime factors.

n	a(n)
1	375
2	459
3	783
4	819
5	875
6	1071
7	1107
8	1155
9	1375
10	1395
11	1715
12	1911
13	1935
14	1995
15	2223
16	2275
17	2375
18	2499
19	2619
20	2655
21	2695
22	2727
23	2875
24	2907
25	2943
26	3003
27	3051
28	3135
29	3195
30	3255
31	3315
32	3519
33	3575
34	3627
35	3699
36	3843
37	3927
38	3975
39	4059
40	4459
41	4515
42	4671
43	4815
44	4887
45	4935
46	4959
47	5187
48	5247
49	5375
50	5415
51	5607
52	5635
53	5655

[375, 459, 783, 819, 875, 1071, 1107, 1155, 1375, 1395, 1715, 1911, 1935, 1995, 2223, 2275, 2375, 2499, 2619, 2655, 2695, 2727, 2875, 2907, 2943, 3003, 3051, 3135, 3195, 3255, 3315, 3519, 3575, 3627, 3699, 3843, 3927, 3975, 4059, 4459, 4515, 4671, 4815, 4887, 4935, 4959, 5187, 5247, 5375, 5415, 5607, 5635, 5655]

cp's OEIS Frontend

A369663 Numbers k of the form 4m+3, whose arithmetic derivative k' is of the form 4u+2, and k' has an even number of prime factors.

Table of values

List of values