A336699 - cp's OEIS frontend

A336699 a(n) = A000265(1+A000265(sigma(A000265(n)))), where A000265(k) gives the odd part of k, and sigma is the sum of divisors function.

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

[1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 5, 7, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 5, 1, 7, 5, 3, 1, 1, 11, 1, 3, 1, 5, 1, 1, 1, 29, 1, 5, 1, 7, 3, 5, 1, 3, 1, 1, 1, 1, 1, 7, 1, 11, 1, 9, 5, 1, 1, 5, 7, 19, 5, 1, 3, 1, 1, 3, 1, 61, 11, 11, 1, 7, 3, 1, 1, 23, 5, 1, 1, 1, 1, 1, 1, 25, 29, 5, 1, 13, 5, 7, 1, 1]

cp's OEIS Frontend

A336699 a(n) = A000265(1+A000265(sigma(A000265(n)))), where A000265(k) gives the odd part of k, and sigma is the sum of divisors function.

Table of values

List of values

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

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

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