A319698 - cp's OEIS frontend

A319698 Filter sequence combining A003557(n) [n divided by largest squarefree divisor of n] with A319697(n) [sum of even squarefree divisors of n].

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	4
7	1
8	5
9	6
10	7
11	1
12	8
13	1
14	9
15	1
16	10
17	1
18	11
19	1
20	12
21	1
22	13
23	1
24	14
25	15
26	16
27	17
28	18
29	1
30	19
31	1
32	20
33	1
34	21
35	1
36	22
37	1
38	23
39	1
40	24
41	1
42	25
43	1
44	26
45	6
46	19
47	1
48	27
49	28
50	29
51	1
52	30
53	1
54	31
55	1
56	32
57	1
58	33
59	1
60	34
61	1
62	25
63	6
64	35
65	1
66	36
67	1
68	37
69	1
70	36
71	1
72	38
73	1
74	39
75	15
76	40
77	1
78	41
79	1
80	42
81	43
82	44
83	1
84	45
85	1
86	46
87	1
88	47
89	1
90	48
91	1
92	34
93	1
94	36
95	1
96	49
97	1
98	50
99	6
100	51
101	1
102	52
103	1
104	53
105	1

[1, 2, 1, 3, 1, 4, 1, 5, 6, 7, 1, 8, 1, 9, 1, 10, 1, 11, 1, 12, 1, 13, 1, 14, 15, 16, 17, 18, 1, 19, 1, 20, 1, 21, 1, 22, 1, 23, 1, 24, 1, 25, 1, 26, 6, 19, 1, 27, 28, 29, 1, 30, 1, 31, 1, 32, 1, 33, 1, 34, 1, 25, 6, 35, 1, 36, 1, 37, 1, 36, 1, 38, 1, 39, 15, 40, 1, 41, 1, 42, 43, 44, 1, 45, 1, 46, 1, 47, 1, 48, 1, 34, 1, 36, 1, 49, 1, 50, 6, 51, 1, 52, 1, 53, 1]

cp's OEIS Frontend

A319698 Filter sequence combining A003557(n) [n divided by largest squarefree divisor of n] with A319697(n) [sum of even squarefree divisors of n].

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	4
7	1
8	5
9	6
10	7
11	1
12	8
13	1
14	9
15	1
16	10
17	1
18	11
19	1
20	12
21	1
22	13
23	1
24	14
25	15
26	16
27	17
28	18
29	1
30	19
31	1
32	20
33	1
34	21
35	1
36	22
37	1
38	23
39	1
40	24
41	1
42	25
43	1
44	26
45	6
46	19
47	1
48	27
49	28
50	29
51	1
52	30
53	1
54	31
55	1
56	32
57	1
58	33
59	1
60	34
61	1
62	25
63	6
64	35
65	1
66	36
67	1
68	37
69	1
70	36
71	1
72	38
73	1
74	39
75	15
76	40
77	1
78	41
79	1
80	42
81	43
82	44
83	1
84	45
85	1
86	46
87	1
88	47
89	1
90	48
91	1
92	34
93	1
94	36
95	1
96	49
97	1
98	50
99	6
100	51
101	1
102	52
103	1
104	53
105	1

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	4
7	1
8	5
9	6
10	7
11	1
12	8
13	1
14	9
15	1
16	10
17	1
18	11
19	1
20	12
21	1
22	13
23	1
24	14
25	15
26	16
27	17
28	18
29	1
30	19
31	1
32	20
33	1
34	21
35	1
36	22
37	1
38	23
39	1
40	24
41	1
42	25
43	1
44	26
45	6
46	19
47	1
48	27
49	28
50	29
51	1
52	30
53	1
54	31
55	1
56	32
57	1
58	33
59	1
60	34
61	1
62	25
63	6
64	35
65	1
66	36
67	1
68	37
69	1
70	36
71	1
72	38
73	1
74	39
75	15
76	40
77	1
78	41
79	1
80	42
81	43
82	44
83	1
84	45
85	1
86	46
87	1
88	47
89	1
90	48
91	1
92	34
93	1
94	36
95	1
96	49
97	1
98	50
99	6
100	51
101	1
102	52
103	1
104	53
105	1

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	4
7	1
8	5
9	6
10	7
11	1
12	8
13	1
14	9
15	1
16	10
17	1
18	11
19	1
20	12
21	1
22	13
23	1
24	14
25	15
26	16
27	17
28	18
29	1
30	19
31	1
32	20
33	1
34	21
35	1
36	22
37	1
38	23
39	1
40	24
41	1
42	25
43	1
44	26
45	6
46	19
47	1
48	27
49	28
50	29
51	1
52	30
53	1
54	31
55	1
56	32
57	1
58	33
59	1
60	34
61	1
62	25
63	6
64	35
65	1
66	36
67	1
68	37
69	1
70	36
71	1
72	38
73	1
74	39
75	15
76	40
77	1
78	41
79	1
80	42
81	43
82	44
83	1
84	45
85	1
86	46
87	1
88	47
89	1
90	48
91	1
92	34
93	1
94	36
95	1
96	49
97	1
98	50
99	6
100	51
101	1
102	52
103	1
104	53
105	1