A318516 - cp's OEIS frontend

A318516 a(n) = A032742(n) OR n-A032742(n), where OR is bitwise-or (A003986) and A032742 = the largest proper divisor of n.

n	a(n)
1	1
2	1
3	3
4	2
5	5
6	3
7	7
8	4
9	7
10	5
11	11
12	6
13	13
14	7
15	15
16	8
17	17
18	9
19	19
20	10
21	15
22	11
23	23
24	12
25	21
26	13
27	27
28	14
29	29
30	15
31	31
32	16
33	31
34	17
35	31
36	18
37	37
38	19
39	31
40	20
41	41
42	21
43	43
44	22
45	31
46	23
47	47
48	24
49	47
50	25
51	51
52	26
53	53
54	27
55	47
56	28
57	55
58	29
59	59
60	30
61	61
62	31
63	63
64	32
65	61
66	33
67	67
68	34
69	63
70	35
71	71
72	36
73	73
74	37
75	59
76	38
77	75
78	39
79	79
80	40
81	63
82	41
83	83
84	42

[1, 1, 3, 2, 5, 3, 7, 4, 7, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 15, 11, 23, 12, 21, 13, 27, 14, 29, 15, 31, 16, 31, 17, 31, 18, 37, 19, 31, 20, 41, 21, 43, 22, 31, 23, 47, 24, 47, 25, 51, 26, 53, 27, 47, 28, 55, 29, 59, 30, 61, 31, 63, 32, 61, 33, 67, 34, 63, 35, 71, 36, 73, 37, 59, 38, 75, 39, 79, 40, 63, 41, 83, 42]

cp's OEIS Frontend

A318516 a(n) = A032742(n) OR n-A032742(n), where OR is bitwise-or (A003986) and A032742 = the largest proper divisor of n.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	2
5	5
6	3
7	7
8	4
9	7
10	5
11	11
12	6
13	13
14	7
15	15
16	8
17	17
18	9
19	19
20	10
21	15
22	11
23	23
24	12
25	21
26	13
27	27
28	14
29	29
30	15
31	31
32	16
33	31
34	17
35	31
36	18
37	37
38	19
39	31
40	20
41	41
42	21
43	43
44	22
45	31
46	23
47	47
48	24
49	47
50	25
51	51
52	26
53	53
54	27
55	47
56	28
57	55
58	29
59	59
60	30
61	61
62	31
63	63
64	32
65	61
66	33
67	67
68	34
69	63
70	35
71	71
72	36
73	73
74	37
75	59
76	38
77	75
78	39
79	79
80	40
81	63
82	41
83	83
84	42

n	a(n)
1	1
2	1
3	3
4	2
5	5
6	3
7	7
8	4
9	7
10	5
11	11
12	6
13	13
14	7
15	15
16	8
17	17
18	9
19	19
20	10
21	15
22	11
23	23
24	12
25	21
26	13
27	27
28	14
29	29
30	15
31	31
32	16
33	31
34	17
35	31
36	18
37	37
38	19
39	31
40	20
41	41
42	21
43	43
44	22
45	31
46	23
47	47
48	24
49	47
50	25
51	51
52	26
53	53
54	27
55	47
56	28
57	55
58	29
59	59
60	30
61	61
62	31
63	63
64	32
65	61
66	33
67	67
68	34
69	63
70	35
71	71
72	36
73	73
74	37
75	59
76	38
77	75
78	39
79	79
80	40
81	63
82	41
83	83
84	42

n	a(n)
1	1
2	1
3	3
4	2
5	5
6	3
7	7
8	4
9	7
10	5
11	11
12	6
13	13
14	7
15	15
16	8
17	17
18	9
19	19
20	10
21	15
22	11
23	23
24	12
25	21
26	13
27	27
28	14
29	29
30	15
31	31
32	16
33	31
34	17
35	31
36	18
37	37
38	19
39	31
40	20
41	41
42	21
43	43
44	22
45	31
46	23
47	47
48	24
49	47
50	25
51	51
52	26
53	53
54	27
55	47
56	28
57	55
58	29
59	59
60	30
61	61
62	31
63	63
64	32
65	61
66	33
67	67
68	34
69	63
70	35
71	71
72	36
73	73
74	37
75	59
76	38
77	75
78	39
79	79
80	40
81	63
82	41
83	83
84	42