A050012 - cp's OEIS frontend

A050012 a(n) = floor(a(n-1)/2) if this is positive and not yet in the sequence, otherwise a(n) = 7*a(n-1).

n	a(n)
1	1
2	7
3	3
4	21
5	10
6	5
7	2
8	14
9	98
10	49
11	24
12	12
13	6
14	42
15	294
16	147
17	73
18	36
19	18
20	9
21	4
22	28
23	196
24	1372
25	686
26	343
27	171
28	85
29	595
30	297
31	148
32	74
33	37
34	259
35	129
36	64
37	32
38	16
39	8
40	56
41	392
42	2744
43	19208
44	9604
45	4802
46	2401
47	1200
48	600
49	300
50	150
51	75
52	525
53	262

[1, 7, 3, 21, 10, 5, 2, 14, 98, 49, 24, 12, 6, 42, 294, 147, 73, 36, 18, 9, 4, 28, 196, 1372, 686, 343, 171, 85, 595, 297, 148, 74, 37, 259, 129, 64, 32, 16, 8, 56, 392, 2744, 19208, 9604, 4802, 2401, 1200, 600, 300, 150, 75, 525, 262]

cp's OEIS Frontend

A050012 a(n) = floor(a(n-1)/2) if this is positive and not yet in the sequence, otherwise a(n) = 7*a(n-1).

Table of values

List of values