A243059 - cp's OEIS frontend

A243059 If n = p_a * p_b * ... * p_h * p_i * p_j * p_k, with p_a <= p_b <= ... <= p_k, then a(n) = p_{k-j} * p_{k-i} * p_{k-h} * ... * p_{k-a} * p_k, where p_{0} = 0 and for k>=1, p_{k} = A000040(k). a(1)=1 by convention.

n	a(n)
1	1
2	2
3	3
4	0
5	5
6	6
7	7
8	0
9	0
10	15
11	11
12	12
13	13
14	35
15	10
16	0
17	17
18	0
19	19
20	45
21	21
22	77
23	23
24	24
25	0
26	143
27	0
28	175
29	29
30	30
31	31
32	0
33	55
34	221
35	14
36	0
37	37
38	323
39	91
40	135
41	41
42	105
43	43
44	539
45	20
46	437
47	47
48	48
49	0
50	0
51	187
52	1573
53	53
54	0
55	33
56	875
57	247
58	667
59	59
60	90
61	61
62	899
63	63
64	0
65	65
66	385
67	67
68	2873
69	391
70	70
71	71
72	0

[1, 2, 3, 0, 5, 6, 7, 0, 0, 15, 11, 12, 13, 35, 10, 0, 17, 0, 19, 45, 21, 77, 23, 24, 0, 143, 0, 175, 29, 30, 31, 0, 55, 221, 14, 0, 37, 323, 91, 135, 41, 105, 43, 539, 20, 437, 47, 48, 0, 0, 187, 1573, 53, 0, 33, 875, 247, 667, 59, 90, 61, 899, 63, 0, 65, 385, 67, 2873, 391, 70, 71, 0]

cp's OEIS Frontend

A243059 If n = p_a * p_b * ... * p_h * p_i * p_j * p_k, with p_a <= p_b <= ... <= p_k, then a(n) = p_{k-j} * p_{k-i} * p_{k-h} * ... * p_{k-a} * p_k, where p_{0} = 0 and for k>=1, p_{k} = A000040(k). a(1)=1 by convention.

Table of values

List of values