A320008 - cp's OEIS frontend

A320008 a(0) = 1; for n > 0, a(n) = A000120(n) * a(n-A000120(n)), where A000120(n) is the binary weight of n.

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	4
6	4
7	6
8	6
9	12
10	12
11	18
12	24
13	36
14	54
15	72
16	72
17	144
18	144
19	216
20	288
21	432
22	648
23	864
24	1296
25	1944
26	2592
27	3456
28	5832
29	7776
30	10368
31	12960
32	12960
33	25920
34	25920
35	38880
36	51840
37	77760
38	116640
39	155520
40	233280
41	349920
42	466560
43	622080
44	1049760
45	1399680
46	1866240
47	2332800
48	3732480
49	5598720
50	6998400
51	9331200
52	16796160
53	22394880
54	27993600
55	34992000

[1, 1, 1, 2, 2, 4, 4, 6, 6, 12, 12, 18, 24, 36, 54, 72, 72, 144, 144, 216, 288, 432, 648, 864, 1296, 1944, 2592, 3456, 5832, 7776, 10368, 12960, 12960, 25920, 25920, 38880, 51840, 77760, 116640, 155520, 233280, 349920, 466560, 622080, 1049760, 1399680, 1866240, 2332800, 3732480, 5598720, 6998400, 9331200, 16796160, 22394880, 27993600, 34992000]

cp's OEIS Frontend

A320008 a(0) = 1; for n > 0, a(n) = A000120(n) * a(n-A000120(n)), where A000120(n) is the binary weight of n.

Table of values

List of values