A342131 - cp's OEIS frontend

A342131 a(n) = n/2 + floor(n/4) if n is even, otherwise (3*n+1)/2.

n	a(n)
0	0
1	2
2	1
3	5
4	3
5	8
6	4
7	11
8	6
9	14
10	7
11	17
12	9
13	20
14	10
15	23
16	12
17	26
18	13
19	29
20	15
21	32
22	16
23	35
24	18
25	38
26	19
27	41
28	21
29	44
30	22
31	47
32	24
33	50
34	25
35	53
36	27
37	56
38	28
39	59
40	30
41	62
42	31
43	65
44	33
45	68
46	34
47	71
48	36
49	74
50	37
51	77
52	39
53	80
54	40
55	83
56	42
57	86
58	43
59	89
60	45
61	92
62	46
63	95
64	48
65	98
66	49
67	101
68	51
69	104

[0, 2, 1, 5, 3, 8, 4, 11, 6, 14, 7, 17, 9, 20, 10, 23, 12, 26, 13, 29, 15, 32, 16, 35, 18, 38, 19, 41, 21, 44, 22, 47, 24, 50, 25, 53, 27, 56, 28, 59, 30, 62, 31, 65, 33, 68, 34, 71, 36, 74, 37, 77, 39, 80, 40, 83, 42, 86, 43, 89, 45, 92, 46, 95, 48, 98, 49, 101, 51, 104]

cp's OEIS Frontend

A342131 a(n) = n/2 + floor(n/4) if n is even, otherwise (3*n+1)/2.

Table of values

List of values

n	a(n)
0	0
1	2
2	1
3	5
4	3
5	8
6	4
7	11
8	6
9	14
10	7
11	17
12	9
13	20
14	10
15	23
16	12
17	26
18	13
19	29
20	15
21	32
22	16
23	35
24	18
25	38
26	19
27	41
28	21
29	44
30	22
31	47
32	24
33	50
34	25
35	53
36	27
37	56
38	28
39	59
40	30
41	62
42	31
43	65
44	33
45	68
46	34
47	71
48	36
49	74
50	37
51	77
52	39
53	80
54	40
55	83
56	42
57	86
58	43
59	89
60	45
61	92
62	46
63	95
64	48
65	98
66	49
67	101
68	51
69	104

n	a(n)
0	0
1	2
2	1
3	5
4	3
5	8
6	4
7	11
8	6
9	14
10	7
11	17
12	9
13	20
14	10
15	23
16	12
17	26
18	13
19	29
20	15
21	32
22	16
23	35
24	18
25	38
26	19
27	41
28	21
29	44
30	22
31	47
32	24
33	50
34	25
35	53
36	27
37	56
38	28
39	59
40	30
41	62
42	31
43	65
44	33
45	68
46	34
47	71
48	36
49	74
50	37
51	77
52	39
53	80
54	40
55	83
56	42
57	86
58	43
59	89
60	45
61	92
62	46
63	95
64	48
65	98
66	49
67	101
68	51
69	104

n	a(n)
0	0
1	2
2	1
3	5
4	3
5	8
6	4
7	11
8	6
9	14
10	7
11	17
12	9
13	20
14	10
15	23
16	12
17	26
18	13
19	29
20	15
21	32
22	16
23	35
24	18
25	38
26	19
27	41
28	21
29	44
30	22
31	47
32	24
33	50
34	25
35	53
36	27
37	56
38	28
39	59
40	30
41	62
42	31
43	65
44	33
45	68
46	34
47	71
48	36
49	74
50	37
51	77
52	39
53	80
54	40
55	83
56	42
57	86
58	43
59	89
60	45
61	92
62	46
63	95
64	48
65	98
66	49
67	101
68	51
69	104