A364902 - cp's OEIS frontend

A364902 Let x, y be the greatest exponents of 2, 3 respectively such that 2^x, 3^y do not exceed n and let k_2, k_3 be n - 2^x, and n - 3^y respectively. Then for n such that k_2 = 0 or k_3 = 0, a(n) = n, else a(n) is the least novel number Min{pa(k_2), qa(k_3)}, where p, q are primes not equal to either 2 or 3.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	10
7	15
8	8
9	9
10	7
11	14
12	20
13	25
14	35
15	50
16	16
17	11
18	22
19	21
20	28
21	55
22	70
23	75
24	40
25	45
26	49
27	27
28	13
29	26
30	33
31	44
32	32
33	17
34	34
35	39
36	52
37	65
38	98
39	100
40	56
41	63
42	77
43	80
44	121
45	110
46	105
47	140
48	112
49	143
50	154
51	147
52	196
53	245
54	135
55	91
56	130
57	165
58	220
59	160
60	85
61	170
62	195
63	260
64	64
65	19
66	38
67	51
68	68

[1, 2, 3, 4, 5, 10, 15, 8, 9, 7, 14, 20, 25, 35, 50, 16, 11, 22, 21, 28, 55, 70, 75, 40, 45, 49, 27, 13, 26, 33, 44, 32, 17, 34, 39, 52, 65, 98, 100, 56, 63, 77, 80, 121, 110, 105, 140, 112, 143, 154, 147, 196, 245, 135, 91, 130, 165, 220, 160, 85, 170, 195, 260, 64, 19, 38, 51, 68]

cp's OEIS Frontend

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	10
7	15
8	8
9	9
10	7
11	14
12	20
13	25
14	35
15	50
16	16
17	11
18	22
19	21
20	28
21	55
22	70
23	75
24	40
25	45
26	49
27	27
28	13
29	26
30	33
31	44
32	32
33	17
34	34
35	39
36	52
37	65
38	98
39	100
40	56
41	63
42	77
43	80
44	121
45	110
46	105
47	140
48	112
49	143
50	154
51	147
52	196
53	245
54	135
55	91
56	130
57	165
58	220
59	160
60	85
61	170
62	195
63	260
64	64
65	19
66	38
67	51
68	68

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	10
7	15
8	8
9	9
10	7
11	14
12	20
13	25
14	35
15	50
16	16
17	11
18	22
19	21
20	28
21	55
22	70
23	75
24	40
25	45
26	49
27	27
28	13
29	26
30	33
31	44
32	32
33	17
34	34
35	39
36	52
37	65
38	98
39	100
40	56
41	63
42	77
43	80
44	121
45	110
46	105
47	140
48	112
49	143
50	154
51	147
52	196
53	245
54	135
55	91
56	130
57	165
58	220
59	160
60	85
61	170
62	195
63	260
64	64
65	19
66	38
67	51
68	68

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	10
7	15
8	8
9	9
10	7
11	14
12	20
13	25
14	35
15	50
16	16
17	11
18	22
19	21
20	28
21	55
22	70
23	75
24	40
25	45
26	49
27	27
28	13
29	26
30	33
31	44
32	32
33	17
34	34
35	39
36	52
37	65
38	98
39	100
40	56
41	63
42	77
43	80
44	121
45	110
46	105
47	140
48	112
49	143
50	154
51	147
52	196
53	245
54	135
55	91
56	130
57	165
58	220
59	160
60	85
61	170
62	195
63	260
64	64
65	19
66	38
67	51
68	68