A319714 - cp's OEIS frontend

A319714 Filter sequence combining the largest proper divisor of n (A032742) with n's residue modulo 4 (A010873).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	3
8	7
9	8
10	9
11	3
12	10
13	5
14	11
15	12
16	13
17	5
18	14
19	3
20	15
21	16
22	17
23	3
24	18
25	19
26	20
27	21
28	22
29	5
30	23
31	3
32	24
33	25
34	26
35	27
36	28
37	5
38	29
39	30
40	31
41	5
42	32
43	3
44	33
45	34
46	35
47	3
48	36
49	16
50	37
51	38
52	39
53	5
54	40
55	41
56	42
57	43
58	44
59	3
60	45
61	5
62	46
63	47
64	48
65	49
66	50
67	3
68	51
69	52
70	53
71	3
72	54
73	5
74	55
75	56
76	57
77	25
78	58
79	3
80	59
81	60
82	61
83	3
84	62
85	63
86	64
87	65
88	66
89	5
90	67
91	30
92	68
93	69
94	70
95	71
96	72
97	5
98	73

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

cp's OEIS Frontend

A319714 Filter sequence combining the largest proper divisor of n (A032742) with n's residue modulo 4 (A010873).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	3
8	7
9	8
10	9
11	3
12	10
13	5
14	11
15	12
16	13
17	5
18	14
19	3
20	15
21	16
22	17
23	3
24	18
25	19
26	20
27	21
28	22
29	5
30	23
31	3
32	24
33	25
34	26
35	27
36	28
37	5
38	29
39	30
40	31
41	5
42	32
43	3
44	33
45	34
46	35
47	3
48	36
49	16
50	37
51	38
52	39
53	5
54	40
55	41
56	42
57	43
58	44
59	3
60	45
61	5
62	46
63	47
64	48
65	49
66	50
67	3
68	51
69	52
70	53
71	3
72	54
73	5
74	55
75	56
76	57
77	25
78	58
79	3
80	59
81	60
82	61
83	3
84	62
85	63
86	64
87	65
88	66
89	5
90	67
91	30
92	68
93	69
94	70
95	71
96	72
97	5
98	73

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	3
8	7
9	8
10	9
11	3
12	10
13	5
14	11
15	12
16	13
17	5
18	14
19	3
20	15
21	16
22	17
23	3
24	18
25	19
26	20
27	21
28	22
29	5
30	23
31	3
32	24
33	25
34	26
35	27
36	28
37	5
38	29
39	30
40	31
41	5
42	32
43	3
44	33
45	34
46	35
47	3
48	36
49	16
50	37
51	38
52	39
53	5
54	40
55	41
56	42
57	43
58	44
59	3
60	45
61	5
62	46
63	47
64	48
65	49
66	50
67	3
68	51
69	52
70	53
71	3
72	54
73	5
74	55
75	56
76	57
77	25
78	58
79	3
80	59
81	60
82	61
83	3
84	62
85	63
86	64
87	65
88	66
89	5
90	67
91	30
92	68
93	69
94	70
95	71
96	72
97	5
98	73

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	3
8	7
9	8
10	9
11	3
12	10
13	5
14	11
15	12
16	13
17	5
18	14
19	3
20	15
21	16
22	17
23	3
24	18
25	19
26	20
27	21
28	22
29	5
30	23
31	3
32	24
33	25
34	26
35	27
36	28
37	5
38	29
39	30
40	31
41	5
42	32
43	3
44	33
45	34
46	35
47	3
48	36
49	16
50	37
51	38
52	39
53	5
54	40
55	41
56	42
57	43
58	44
59	3
60	45
61	5
62	46
63	47
64	48
65	49
66	50
67	3
68	51
69	52
70	53
71	3
72	54
73	5
74	55
75	56
76	57
77	25
78	58
79	3
80	59
81	60
82	61
83	3
84	62
85	63
86	64
87	65
88	66
89	5
90	67
91	30
92	68
93	69
94	70
95	71
96	72
97	5
98	73