A364611 - cp's OEIS frontend

A364611 For p = 5 and n > 0, write n = p^m + k, m >= 0, with maximal p^m <= n, with 0 <= k < p^(m+1) - p^m, then for n such that k=0, a(n)=n, and for n such that k > 0, a(n) is the smallest q*a(k), prime q != p, that is not already a term.

n	a(n)
1	1
2	2
3	4
4	8
5	5
6	3
7	6
8	12
9	16
10	10
11	9
12	18
13	24
14	32
15	20
16	27
17	36
18	48
19	64
20	40
21	54
22	72
23	96
24	128
25	25
26	7
27	14
28	28
29	56
30	15
31	21
32	42
33	84
34	112
35	30
36	63
37	126
38	168
39	224
40	60
41	81
42	108
43	144
44	192
45	80
46	162
47	216
48	288
49	256
50	50
51	49
52	98
53	196
54	392
55	45
56	147
57	294
58	252
59	336
60	90
61	189
62	378
63	504

[1, 2, 4, 8, 5, 3, 6, 12, 16, 10, 9, 18, 24, 32, 20, 27, 36, 48, 64, 40, 54, 72, 96, 128, 25, 7, 14, 28, 56, 15, 21, 42, 84, 112, 30, 63, 126, 168, 224, 60, 81, 108, 144, 192, 80, 162, 216, 288, 256, 50, 49, 98, 196, 392, 45, 147, 294, 252, 336, 90, 189, 378, 504]

cp's OEIS Frontend

A364611 For p = 5 and n > 0, write n = p^m + k, m >= 0, with maximal p^m <= n, with 0 <= k < p^(m+1) - p^m, then for n such that k=0, a(n)=n, and for n such that k > 0, a(n) is the smallest q*a(k), prime q != p, that is not already a term.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	8
5	5
6	3
7	6
8	12
9	16
10	10
11	9
12	18
13	24
14	32
15	20
16	27
17	36
18	48
19	64
20	40
21	54
22	72
23	96
24	128
25	25
26	7
27	14
28	28
29	56
30	15
31	21
32	42
33	84
34	112
35	30
36	63
37	126
38	168
39	224
40	60
41	81
42	108
43	144
44	192
45	80
46	162
47	216
48	288
49	256
50	50
51	49
52	98
53	196
54	392
55	45
56	147
57	294
58	252
59	336
60	90
61	189
62	378
63	504

n	a(n)
1	1
2	2
3	4
4	8
5	5
6	3
7	6
8	12
9	16
10	10
11	9
12	18
13	24
14	32
15	20
16	27
17	36
18	48
19	64
20	40
21	54
22	72
23	96
24	128
25	25
26	7
27	14
28	28
29	56
30	15
31	21
32	42
33	84
34	112
35	30
36	63
37	126
38	168
39	224
40	60
41	81
42	108
43	144
44	192
45	80
46	162
47	216
48	288
49	256
50	50
51	49
52	98
53	196
54	392
55	45
56	147
57	294
58	252
59	336
60	90
61	189
62	378
63	504

n	a(n)
1	1
2	2
3	4
4	8
5	5
6	3
7	6
8	12
9	16
10	10
11	9
12	18
13	24
14	32
15	20
16	27
17	36
18	48
19	64
20	40
21	54
22	72
23	96
24	128
25	25
26	7
27	14
28	28
29	56
30	15
31	21
32	42
33	84
34	112
35	30
36	63
37	126
38	168
39	224
40	60
41	81
42	108
43	144
44	192
45	80
46	162
47	216
48	288
49	256
50	50
51	49
52	98
53	196
54	392
55	45
56	147
57	294
58	252
59	336
60	90
61	189
62	378
63	504