A171977 - cp's OEIS frontend

A171977 a(n) = 2^(k+1) where 2^k is the highest power of 2 dividing n.

n	a(n)
1	2
2	4
3	2
4	8
5	2
6	4
7	2
8	16
9	2
10	4
11	2
12	8
13	2
14	4
15	2
16	32
17	2
18	4
19	2
20	8
21	2
22	4
23	2
24	16
25	2
26	4
27	2
28	8
29	2
30	4
31	2
32	64
33	2
34	4
35	2
36	8
37	2
38	4
39	2
40	16
41	2
42	4
43	2
44	8
45	2
46	4
47	2
48	32
49	2
50	4
51	2
52	8
53	2
54	4
55	2
56	16
57	2
58	4
59	2
60	8
61	2
62	4
63	2

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

cp's OEIS Frontend

A171977 a(n) = 2^(k+1) where 2^k is the highest power of 2 dividing n.

Table of values

List of values

n	a(n)
1	2
2	4
3	2
4	8
5	2
6	4
7	2
8	16
9	2
10	4
11	2
12	8
13	2
14	4
15	2
16	32
17	2
18	4
19	2
20	8
21	2
22	4
23	2
24	16
25	2
26	4
27	2
28	8
29	2
30	4
31	2
32	64
33	2
34	4
35	2
36	8
37	2
38	4
39	2
40	16
41	2
42	4
43	2
44	8
45	2
46	4
47	2
48	32
49	2
50	4
51	2
52	8
53	2
54	4
55	2
56	16
57	2
58	4
59	2
60	8
61	2
62	4
63	2

n	a(n)
1	2
2	4
3	2
4	8
5	2
6	4
7	2
8	16
9	2
10	4
11	2
12	8
13	2
14	4
15	2
16	32
17	2
18	4
19	2
20	8
21	2
22	4
23	2
24	16
25	2
26	4
27	2
28	8
29	2
30	4
31	2
32	64
33	2
34	4
35	2
36	8
37	2
38	4
39	2
40	16
41	2
42	4
43	2
44	8
45	2
46	4
47	2
48	32
49	2
50	4
51	2
52	8
53	2
54	4
55	2
56	16
57	2
58	4
59	2
60	8
61	2
62	4
63	2

n	a(n)
1	2
2	4
3	2
4	8
5	2
6	4
7	2
8	16
9	2
10	4
11	2
12	8
13	2
14	4
15	2
16	32
17	2
18	4
19	2
20	8
21	2
22	4
23	2
24	16
25	2
26	4
27	2
28	8
29	2
30	4
31	2
32	64
33	2
34	4
35	2
36	8
37	2
38	4
39	2
40	16
41	2
42	4
43	2
44	8
45	2
46	4
47	2
48	32
49	2
50	4
51	2
52	8
53	2
54	4
55	2
56	16
57	2
58	4
59	2
60	8
61	2
62	4
63	2