A057335 - cp's OEIS frontend

A057335 a(0) = 1, and for n > 0, a(n) = A000040(A000120(n)) * a(floor(n/2)); essentially sequence A055932 generated using A000120, hence sorted by number of factors.

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	12
6	18
7	30
8	16
9	24
10	36
11	60
12	54
13	90
14	150
15	210
16	32
17	48
18	72
19	120
20	108
21	180
22	300
23	420
24	162
25	270
26	450
27	630
28	750
29	1050
30	1470
31	2310
32	64
33	96
34	144
35	240
36	216
37	360
38	600
39	840
40	324
41	540
42	900
43	1260
44	1500
45	2100
46	2940
47	4620
48	486
49	810
50	1350
51	1890
52	2250
53	3150
54	4410

[1, 2, 4, 6, 8, 12, 18, 30, 16, 24, 36, 60, 54, 90, 150, 210, 32, 48, 72, 120, 108, 180, 300, 420, 162, 270, 450, 630, 750, 1050, 1470, 2310, 64, 96, 144, 240, 216, 360, 600, 840, 324, 540, 900, 1260, 1500, 2100, 2940, 4620, 486, 810, 1350, 1890, 2250, 3150, 4410]

cp's OEIS Frontend

A057335 a(0) = 1, and for n > 0, a(n) = A000040(A000120(n)) * a(floor(n/2)); essentially sequence A055932 generated using A000120, hence sorted by number of factors.

Table of values

List of values