A369449 - cp's OEIS frontend

A369449 a(n) = A003415(gcd(A003415(n), A276086(n))), where A003415 is the arithmetic derivative and A276086 is the primorial base exp-function.

n	a(n)
0	0
1	1
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	5
10	0
11	0
12	0
13	0
14	1
15	1
16	0
17	0
18	0
19	0
20	1
21	7
22	0
23	0
24	0
25	7
26	8
27	1
28	0
29	0
30	0
31	0
32	0
33	9
34	0
35	5
36	1
37	0
38	10
39	1
40	0
41	0
42	0
43	0
44	1
45	1
46	10
47	0
48	1
49	9
50	8
51	7
52	1
53	0
54	0
55	1
56	0
57	1
58	0
59	0
60	0
61	0
62	1
63	1
64	1
65	21
66	0
67	0
68	1
69	1
70	0
71	0
72	0
73	0
74	1
75	1
76	1
77	21
78	0
79	0
80	0
81	5
82	0
83	0
84	0
85	1
86	8
87	1
88	12
89	0
90	0
91	1
92	1
93	1
94	14
95	5
96	0
97	0
98	1
99	8
100	12
101	0
102	1

[0, 1, 0, 0, 0, 0, 1, 0, 1, 5, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 7, 0, 0, 0, 7, 8, 1, 0, 0, 0, 0, 0, 9, 0, 5, 1, 0, 10, 1, 0, 0, 0, 0, 1, 1, 10, 0, 1, 9, 8, 7, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 21, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 21, 0, 0, 0, 5, 0, 0, 0, 1, 8, 1, 12, 0, 0, 1, 1, 1, 14, 5, 0, 0, 1, 8, 12, 0, 1]

cp's OEIS Frontend

A369449 a(n) = A003415(gcd(A003415(n), A276086(n))), where A003415 is the arithmetic derivative and A276086 is the primorial base exp-function.

Table of values

List of values

n	a(n)
0	0
1	1
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	5
10	0
11	0
12	0
13	0
14	1
15	1
16	0
17	0
18	0
19	0
20	1
21	7
22	0
23	0
24	0
25	7
26	8
27	1
28	0
29	0
30	0
31	0
32	0
33	9
34	0
35	5
36	1
37	0
38	10
39	1
40	0
41	0
42	0
43	0
44	1
45	1
46	10
47	0
48	1
49	9
50	8
51	7
52	1
53	0
54	0
55	1
56	0
57	1
58	0
59	0
60	0
61	0
62	1
63	1
64	1
65	21
66	0
67	0
68	1
69	1
70	0
71	0
72	0
73	0
74	1
75	1
76	1
77	21
78	0
79	0
80	0
81	5
82	0
83	0
84	0
85	1
86	8
87	1
88	12
89	0
90	0
91	1
92	1
93	1
94	14
95	5
96	0
97	0
98	1
99	8
100	12
101	0
102	1

n	a(n)
0	0
1	1
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	5
10	0
11	0
12	0
13	0
14	1
15	1
16	0
17	0
18	0
19	0
20	1
21	7
22	0
23	0
24	0
25	7
26	8
27	1
28	0
29	0
30	0
31	0
32	0
33	9
34	0
35	5
36	1
37	0
38	10
39	1
40	0
41	0
42	0
43	0
44	1
45	1
46	10
47	0
48	1
49	9
50	8
51	7
52	1
53	0
54	0
55	1
56	0
57	1
58	0
59	0
60	0
61	0
62	1
63	1
64	1
65	21
66	0
67	0
68	1
69	1
70	0
71	0
72	0
73	0
74	1
75	1
76	1
77	21
78	0
79	0
80	0
81	5
82	0
83	0
84	0
85	1
86	8
87	1
88	12
89	0
90	0
91	1
92	1
93	1
94	14
95	5
96	0
97	0
98	1
99	8
100	12
101	0
102	1

n	a(n)
0	0
1	1
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	5
10	0
11	0
12	0
13	0
14	1
15	1
16	0
17	0
18	0
19	0
20	1
21	7
22	0
23	0
24	0
25	7
26	8
27	1
28	0
29	0
30	0
31	0
32	0
33	9
34	0
35	5
36	1
37	0
38	10
39	1
40	0
41	0
42	0
43	0
44	1
45	1
46	10
47	0
48	1
49	9
50	8
51	7
52	1
53	0
54	0
55	1
56	0
57	1
58	0
59	0
60	0
61	0
62	1
63	1
64	1
65	21
66	0
67	0
68	1
69	1
70	0
71	0
72	0
73	0
74	1
75	1
76	1
77	21
78	0
79	0
80	0
81	5
82	0
83	0
84	0
85	1
86	8
87	1
88	12
89	0
90	0
91	1
92	1
93	1
94	14
95	5
96	0
97	0
98	1
99	8
100	12
101	0
102	1