A207901 - cp's OEIS frontend

A207901 Let S_k denote the first 2^k terms of this sequence and let b_k be the smallest positive integer that is not in S_k, also let R_k equal S_k read in reverse order; then the numbers b_k*R_k are the next 2^k terms.

n	a(n)
0	1
1	2
2	6
3	3
4	12
5	24
6	8
7	4
8	20
9	40
10	120
11	60
12	15
13	30
14	10
15	5
16	35
17	70
18	210
19	105
20	420
21	840
22	280
23	140
24	28
25	56
26	168
27	84
28	21
29	42
30	14
31	7
32	63
33	126
34	378
35	189
36	756
37	1512
38	504
39	252
40	1260
41	2520
42	7560
43	3780
44	945
45	1890
46	630
47	315
48	45
49	90
50	270
51	135
52	540
53	1080
54	360
55	180
56	36
57	72
58	216

[1, 2, 6, 3, 12, 24, 8, 4, 20, 40, 120, 60, 15, 30, 10, 5, 35, 70, 210, 105, 420, 840, 280, 140, 28, 56, 168, 84, 21, 42, 14, 7, 63, 126, 378, 189, 756, 1512, 504, 252, 1260, 2520, 7560, 3780, 945, 1890, 630, 315, 45, 90, 270, 135, 540, 1080, 360, 180, 36, 72, 216]

cp's OEIS Frontend

A207901 Let S_k denote the first 2^k terms of this sequence and let b_k be the smallest positive integer that is not in S_k, also let R_k equal S_k read in reverse order; then the numbers b_k*R_k are the next 2^k terms.

Table of values

List of values