A050124 - cp's OEIS frontend

A050124 a(1)=1; for n > 1, a(n) = floor(a(n-1)/5) if this is not among 0,a(1),...,a(n-1); otherwise a(n) = 2*a(n-1).

n	a(n)
1	1
2	2
3	4
4	8
5	16
6	3
7	6
8	12
9	24
10	48
11	9
12	18
13	36
14	7
15	14
16	28
17	5
18	10
19	20
20	40
21	80
22	160
23	32
24	64
25	128
26	25
27	50
28	100
29	200
30	400
31	800
32	1600
33	320
34	640
35	1280
36	256
37	51
38	102
39	204
40	408
41	81
42	162
43	324
44	648
45	129
46	258
47	516
48	103
49	206
50	41
51	82
52	164
53	328
54	65

[1, 2, 4, 8, 16, 3, 6, 12, 24, 48, 9, 18, 36, 7, 14, 28, 5, 10, 20, 40, 80, 160, 32, 64, 128, 25, 50, 100, 200, 400, 800, 1600, 320, 640, 1280, 256, 51, 102, 204, 408, 81, 162, 324, 648, 129, 258, 516, 103, 206, 41, 82, 164, 328, 65]

cp's OEIS Frontend

A050124 a(1)=1; for n > 1, a(n) = floor(a(n-1)/5) if this is not among 0,a(1),...,a(n-1); otherwise a(n) = 2*a(n-1).

Table of values

List of values