A050136 - cp's OEIS frontend

A050136 a(n) = floor(a(n-1)/2) if this is not among 0,a(1),...,a(n-1), otherwise a(n)=5*n.

n	a(n)
1	1
2	10
3	5
4	2
5	25
6	12
7	6
8	3
9	45
10	22
11	11
12	60
13	30
14	15
15	7
16	80
17	40
18	20
19	95
20	47
21	23
22	110
23	55
24	27
25	13
26	130
27	65
28	32
29	16
30	8
31	4
32	160
33	165
34	82
35	41
36	180
37	90
38	190
39	195
40	97
41	48
42	24
43	215
44	107
45	53
46	26
47	235
48	117
49	58
50	29
51	14
52	260
53	265
54	132
55	66
56	33
57	285
58	142
59	71
60	35
61	17
62	310
63	155
64	77
65	38
66	19
67	9
68	340
69	170
70	85
71	42
72	21

[1, 10, 5, 2, 25, 12, 6, 3, 45, 22, 11, 60, 30, 15, 7, 80, 40, 20, 95, 47, 23, 110, 55, 27, 13, 130, 65, 32, 16, 8, 4, 160, 165, 82, 41, 180, 90, 190, 195, 97, 48, 24, 215, 107, 53, 26, 235, 117, 58, 29, 14, 260, 265, 132, 66, 33, 285, 142, 71, 35, 17, 310, 155, 77, 38, 19, 9, 340, 170, 85, 42, 21]

cp's OEIS Frontend

A050136 a(n) = floor(a(n-1)/2) if this is not among 0,a(1),...,a(n-1), otherwise a(n)=5*n.

Table of values

List of values

n	a(n)
1	1
2	10
3	5
4	2
5	25
6	12
7	6
8	3
9	45
10	22
11	11
12	60
13	30
14	15
15	7
16	80
17	40
18	20
19	95
20	47
21	23
22	110
23	55
24	27
25	13
26	130
27	65
28	32
29	16
30	8
31	4
32	160
33	165
34	82
35	41
36	180
37	90
38	190
39	195
40	97
41	48
42	24
43	215
44	107
45	53
46	26
47	235
48	117
49	58
50	29
51	14
52	260
53	265
54	132
55	66
56	33
57	285
58	142
59	71
60	35
61	17
62	310
63	155
64	77
65	38
66	19
67	9
68	340
69	170
70	85
71	42
72	21

n	a(n)
1	1
2	10
3	5
4	2
5	25
6	12
7	6
8	3
9	45
10	22
11	11
12	60
13	30
14	15
15	7
16	80
17	40
18	20
19	95
20	47
21	23
22	110
23	55
24	27
25	13
26	130
27	65
28	32
29	16
30	8
31	4
32	160
33	165
34	82
35	41
36	180
37	90
38	190
39	195
40	97
41	48
42	24
43	215
44	107
45	53
46	26
47	235
48	117
49	58
50	29
51	14
52	260
53	265
54	132
55	66
56	33
57	285
58	142
59	71
60	35
61	17
62	310
63	155
64	77
65	38
66	19
67	9
68	340
69	170
70	85
71	42
72	21

n	a(n)
1	1
2	10
3	5
4	2
5	25
6	12
7	6
8	3
9	45
10	22
11	11
12	60
13	30
14	15
15	7
16	80
17	40
18	20
19	95
20	47
21	23
22	110
23	55
24	27
25	13
26	130
27	65
28	32
29	16
30	8
31	4
32	160
33	165
34	82
35	41
36	180
37	90
38	190
39	195
40	97
41	48
42	24
43	215
44	107
45	53
46	26
47	235
48	117
49	58
50	29
51	14
52	260
53	265
54	132
55	66
56	33
57	285
58	142
59	71
60	35
61	17
62	310
63	155
64	77
65	38
66	19
67	9
68	340
69	170
70	85
71	42
72	21