A064680 - cp's OEIS frontend

A064680 Halve every even number, double every odd number.

n	a(n)
0	0
1	2
2	1
3	6
4	2
5	10
6	3
7	14
8	4
9	18
10	5
11	22
12	6
13	26
14	7
15	30
16	8
17	34
18	9
19	38
20	10
21	42
22	11
23	46
24	12
25	50
26	13
27	54
28	14
29	58
30	15
31	62
32	16
33	66
34	17
35	70
36	18
37	74
38	19
39	78
40	20
41	82
42	21
43	86
44	22
45	90
46	23
47	94
48	24
49	98
50	25
51	102
52	26
53	106
54	27
55	110
56	28
57	114
58	29
59	118
60	30
61	122
62	31
63	126
64	32
65	130
66	33
67	134
68	34
69	138
70	35

[0, 2, 1, 6, 2, 10, 3, 14, 4, 18, 5, 22, 6, 26, 7, 30, 8, 34, 9, 38, 10, 42, 11, 46, 12, 50, 13, 54, 14, 58, 15, 62, 16, 66, 17, 70, 18, 74, 19, 78, 20, 82, 21, 86, 22, 90, 23, 94, 24, 98, 25, 102, 26, 106, 27, 110, 28, 114, 29, 118, 30, 122, 31, 126, 32, 130, 33, 134, 34, 138, 35]

cp's OEIS Frontend

A064680 Halve every even number, double every odd number.

Table of values

List of values

n	a(n)
0	0
1	2
2	1
3	6
4	2
5	10
6	3
7	14
8	4
9	18
10	5
11	22
12	6
13	26
14	7
15	30
16	8
17	34
18	9
19	38
20	10
21	42
22	11
23	46
24	12
25	50
26	13
27	54
28	14
29	58
30	15
31	62
32	16
33	66
34	17
35	70
36	18
37	74
38	19
39	78
40	20
41	82
42	21
43	86
44	22
45	90
46	23
47	94
48	24
49	98
50	25
51	102
52	26
53	106
54	27
55	110
56	28
57	114
58	29
59	118
60	30
61	122
62	31
63	126
64	32
65	130
66	33
67	134
68	34
69	138
70	35

n	a(n)
0	0
1	2
2	1
3	6
4	2
5	10
6	3
7	14
8	4
9	18
10	5
11	22
12	6
13	26
14	7
15	30
16	8
17	34
18	9
19	38
20	10
21	42
22	11
23	46
24	12
25	50
26	13
27	54
28	14
29	58
30	15
31	62
32	16
33	66
34	17
35	70
36	18
37	74
38	19
39	78
40	20
41	82
42	21
43	86
44	22
45	90
46	23
47	94
48	24
49	98
50	25
51	102
52	26
53	106
54	27
55	110
56	28
57	114
58	29
59	118
60	30
61	122
62	31
63	126
64	32
65	130
66	33
67	134
68	34
69	138
70	35

n	a(n)
0	0
1	2
2	1
3	6
4	2
5	10
6	3
7	14
8	4
9	18
10	5
11	22
12	6
13	26
14	7
15	30
16	8
17	34
18	9
19	38
20	10
21	42
22	11
23	46
24	12
25	50
26	13
27	54
28	14
29	58
30	15
31	62
32	16
33	66
34	17
35	70
36	18
37	74
38	19
39	78
40	20
41	82
42	21
43	86
44	22
45	90
46	23
47	94
48	24
49	98
50	25
51	102
52	26
53	106
54	27
55	110
56	28
57	114
58	29
59	118
60	30
61	122
62	31
63	126
64	32
65	130
66	33
67	134
68	34
69	138
70	35