A351566 - cp's OEIS frontend

A351566 Radix of the second least significant nonzero digit in the primorial base expansion of n, or 1 if there is no such digit.

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	3
6	1
7	5
8	5
9	3
10	5
11	3
12	1
13	5
14	5
15	3
16	5
17	3
18	1
19	5
20	5
21	3
22	5
23	3
24	1
25	5
26	5
27	3
28	5
29	3
30	1
31	7
32	7
33	3
34	7
35	3
36	7
37	5
38	5
39	3
40	5
41	3
42	7
43	5
44	5
45	3
46	5
47	3
48	7
49	5
50	5
51	3
52	5
53	3
54	7
55	5
56	5
57	3
58	5
59	3
60	1
61	7
62	7
63	3
64	7
65	3
66	7
67	5
68	5
69	3
70	5
71	3
72	7
73	5
74	5
75	3
76	5
77	3
78	7
79	5
80	5
81	3
82	5
83	3
84	7
85	5
86	5
87	3
88	5
89	3
90	1
91	7
92	7
93	3
94	7
95	3
96	7
97	5
98	5
99	3
100	5
101	3
102	7
103	5
104	5
105	3

[1, 1, 1, 3, 1, 3, 1, 5, 5, 3, 5, 3, 1, 5, 5, 3, 5, 3, 1, 5, 5, 3, 5, 3, 1, 5, 5, 3, 5, 3, 1, 7, 7, 3, 7, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 1, 7, 7, 3, 7, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3, 5, 3, 1, 7, 7, 3, 7, 3, 7, 5, 5, 3, 5, 3, 7, 5, 5, 3]

cp's OEIS Frontend

A351566 Radix of the second least significant nonzero digit in the primorial base expansion of n, or 1 if there is no such digit.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	3
6	1
7	5
8	5
9	3
10	5
11	3
12	1
13	5
14	5
15	3
16	5
17	3
18	1
19	5
20	5
21	3
22	5
23	3
24	1
25	5
26	5
27	3
28	5
29	3
30	1
31	7
32	7
33	3
34	7
35	3
36	7
37	5
38	5
39	3
40	5
41	3
42	7
43	5
44	5
45	3
46	5
47	3
48	7
49	5
50	5
51	3
52	5
53	3
54	7
55	5
56	5
57	3
58	5
59	3
60	1
61	7
62	7
63	3
64	7
65	3
66	7
67	5
68	5
69	3
70	5
71	3
72	7
73	5
74	5
75	3
76	5
77	3
78	7
79	5
80	5
81	3
82	5
83	3
84	7
85	5
86	5
87	3
88	5
89	3
90	1
91	7
92	7
93	3
94	7
95	3
96	7
97	5
98	5
99	3
100	5
101	3
102	7
103	5
104	5
105	3

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	3
6	1
7	5
8	5
9	3
10	5
11	3
12	1
13	5
14	5
15	3
16	5
17	3
18	1
19	5
20	5
21	3
22	5
23	3
24	1
25	5
26	5
27	3
28	5
29	3
30	1
31	7
32	7
33	3
34	7
35	3
36	7
37	5
38	5
39	3
40	5
41	3
42	7
43	5
44	5
45	3
46	5
47	3
48	7
49	5
50	5
51	3
52	5
53	3
54	7
55	5
56	5
57	3
58	5
59	3
60	1
61	7
62	7
63	3
64	7
65	3
66	7
67	5
68	5
69	3
70	5
71	3
72	7
73	5
74	5
75	3
76	5
77	3
78	7
79	5
80	5
81	3
82	5
83	3
84	7
85	5
86	5
87	3
88	5
89	3
90	1
91	7
92	7
93	3
94	7
95	3
96	7
97	5
98	5
99	3
100	5
101	3
102	7
103	5
104	5
105	3

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	3
6	1
7	5
8	5
9	3
10	5
11	3
12	1
13	5
14	5
15	3
16	5
17	3
18	1
19	5
20	5
21	3
22	5
23	3
24	1
25	5
26	5
27	3
28	5
29	3
30	1
31	7
32	7
33	3
34	7
35	3
36	7
37	5
38	5
39	3
40	5
41	3
42	7
43	5
44	5
45	3
46	5
47	3
48	7
49	5
50	5
51	3
52	5
53	3
54	7
55	5
56	5
57	3
58	5
59	3
60	1
61	7
62	7
63	3
64	7
65	3
66	7
67	5
68	5
69	3
70	5
71	3
72	7
73	5
74	5
75	3
76	5
77	3
78	7
79	5
80	5
81	3
82	5
83	3
84	7
85	5
86	5
87	3
88	5
89	3
90	1
91	7
92	7
93	3
94	7
95	3
96	7
97	5
98	5
99	3
100	5
101	3
102	7
103	5
104	5
105	3