A050104 - cp's OEIS frontend

A050104 a(n) = floor(a(n-1)/4) if this is not among 0, a(1), ..., a(n-2); otherwise a(n) = 3*a(n-1).

n	a(n)
1	1
2	3
3	9
4	2
5	6
6	18
7	4
8	12
9	36
10	108
11	27
12	81
13	20
14	5
15	15
16	45
17	11
18	33
19	8
20	24
21	72
22	216
23	54
24	13
25	39
26	117
27	29
28	7
29	21
30	63
31	189
32	47
33	141
34	35
35	105
36	26
37	78
38	19
39	57
40	14
41	42
42	10
43	30
44	90
45	22
46	66
47	16
48	48
49	144
50	432
51	1296
52	324
53	972
54	243
55	60
56	180
57	540
58	135

[1, 3, 9, 2, 6, 18, 4, 12, 36, 108, 27, 81, 20, 5, 15, 45, 11, 33, 8, 24, 72, 216, 54, 13, 39, 117, 29, 7, 21, 63, 189, 47, 141, 35, 105, 26, 78, 19, 57, 14, 42, 10, 30, 90, 22, 66, 16, 48, 144, 432, 1296, 324, 972, 243, 60, 180, 540, 135]

cp's OEIS Frontend

A050104 a(n) = floor(a(n-1)/4) if this is not among 0, a(1), ..., a(n-2); otherwise a(n) = 3*a(n-1).

Table of values

List of values