A061142 - cp's OEIS frontend

A061142 Replace each prime factor of n with 2: a(n) = 2^bigomega(n), where bigomega = A001222, number of prime factors counted with multiplicity.

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	2
8	8
9	4
10	4
11	2
12	8
13	2
14	4
15	4
16	16
17	2
18	8
19	2
20	8
21	4
22	4
23	2
24	16
25	4
26	4
27	8
28	8
29	2
30	8
31	2
32	32
33	4
34	4
35	4
36	16
37	2
38	4
39	4
40	16
41	2
42	8
43	2
44	8
45	8
46	4
47	2
48	32
49	4
50	8
51	4
52	8
53	2
54	16
55	4
56	16
57	4
58	4
59	2
60	16
61	2
62	4
63	8
64	64
65	4
66	8
67	2
68	8
69	4
70	8
71	2
72	32
73	2
74	4
75	8
76	8
77	4
78	8
79	2
80	32
81	16
82	4
83	2
84	16
85	4
86	4
87	4
88	16
89	2
90	16
91	4
92	8
93	4
94	4
95	4

[1, 2, 2, 4, 2, 4, 2, 8, 4, 4, 2, 8, 2, 4, 4, 16, 2, 8, 2, 8, 4, 4, 2, 16, 4, 4, 8, 8, 2, 8, 2, 32, 4, 4, 4, 16, 2, 4, 4, 16, 2, 8, 2, 8, 8, 4, 2, 32, 4, 8, 4, 8, 2, 16, 4, 16, 4, 4, 2, 16, 2, 4, 8, 64, 4, 8, 2, 8, 4, 8, 2, 32, 2, 4, 8, 8, 4, 8, 2, 32, 16, 4, 2, 16, 4, 4, 4, 16, 2, 16, 4, 8, 4, 4, 4]

cp's OEIS Frontend

A061142 Replace each prime factor of n with 2: a(n) = 2^bigomega(n), where bigomega = A001222, number of prime factors counted with multiplicity.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	2
8	8
9	4
10	4
11	2
12	8
13	2
14	4
15	4
16	16
17	2
18	8
19	2
20	8
21	4
22	4
23	2
24	16
25	4
26	4
27	8
28	8
29	2
30	8
31	2
32	32
33	4
34	4
35	4
36	16
37	2
38	4
39	4
40	16
41	2
42	8
43	2
44	8
45	8
46	4
47	2
48	32
49	4
50	8
51	4
52	8
53	2
54	16
55	4
56	16
57	4
58	4
59	2
60	16
61	2
62	4
63	8
64	64
65	4
66	8
67	2
68	8
69	4
70	8
71	2
72	32
73	2
74	4
75	8
76	8
77	4
78	8
79	2
80	32
81	16
82	4
83	2
84	16
85	4
86	4
87	4
88	16
89	2
90	16
91	4
92	8
93	4
94	4
95	4

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	2
8	8
9	4
10	4
11	2
12	8
13	2
14	4
15	4
16	16
17	2
18	8
19	2
20	8
21	4
22	4
23	2
24	16
25	4
26	4
27	8
28	8
29	2
30	8
31	2
32	32
33	4
34	4
35	4
36	16
37	2
38	4
39	4
40	16
41	2
42	8
43	2
44	8
45	8
46	4
47	2
48	32
49	4
50	8
51	4
52	8
53	2
54	16
55	4
56	16
57	4
58	4
59	2
60	16
61	2
62	4
63	8
64	64
65	4
66	8
67	2
68	8
69	4
70	8
71	2
72	32
73	2
74	4
75	8
76	8
77	4
78	8
79	2
80	32
81	16
82	4
83	2
84	16
85	4
86	4
87	4
88	16
89	2
90	16
91	4
92	8
93	4
94	4
95	4

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	2
8	8
9	4
10	4
11	2
12	8
13	2
14	4
15	4
16	16
17	2
18	8
19	2
20	8
21	4
22	4
23	2
24	16
25	4
26	4
27	8
28	8
29	2
30	8
31	2
32	32
33	4
34	4
35	4
36	16
37	2
38	4
39	4
40	16
41	2
42	8
43	2
44	8
45	8
46	4
47	2
48	32
49	4
50	8
51	4
52	8
53	2
54	16
55	4
56	16
57	4
58	4
59	2
60	16
61	2
62	4
63	8
64	64
65	4
66	8
67	2
68	8
69	4
70	8
71	2
72	32
73	2
74	4
75	8
76	8
77	4
78	8
79	2
80	32
81	16
82	4
83	2
84	16
85	4
86	4
87	4
88	16
89	2
90	16
91	4
92	8
93	4
94	4
95	4