A379956 - cp's OEIS frontend

A379956 Numbers k that can be expressed in the form k = floor(prime(i)/2) * prime(i)^e, for some e, i > 0, where prime(i) = A000040(i).

n	a(n)
1	2
2	3
3	4
4	8
5	9
6	10
7	16
8	21
9	27
10	32
11	50
12	55
13	64
14	78
15	81
16	128
17	136
18	147
19	171
20	243
21	250
22	253
23	256
24	406
25	465
26	512
27	605
28	666
29	729
30	820
31	903
32	1014
33	1024
34	1029
35	1081
36	1250
37	1378
38	1711
39	1830
40	2048
41	2187
42	2211
43	2312
44	2485
45	2628
46	3081
47	3249
48	3403
49	3916
50	4096
51	4656
52	5050
53	5253
54	5671
55	5819
56	5886
57	6250
58	6328
59	6561
60	6655
61	7203
62	8001

[2, 3, 4, 8, 9, 10, 16, 21, 27, 32, 50, 55, 64, 78, 81, 128, 136, 147, 171, 243, 250, 253, 256, 406, 465, 512, 605, 666, 729, 820, 903, 1014, 1024, 1029, 1081, 1250, 1378, 1711, 1830, 2048, 2187, 2211, 2312, 2485, 2628, 3081, 3249, 3403, 3916, 4096, 4656, 5050, 5253, 5671, 5819, 5886, 6250, 6328, 6561, 6655, 7203, 8001]

cp's OEIS Frontend

A379956 Numbers k that can be expressed in the form k = floor(prime(i)/2) * prime(i)^e, for some e, i > 0, where prime(i) = A000040(i).

Table of values

List of values