A353515 - cp's OEIS frontend

A353515 The length of the shortest path from n to 1 when using the transitions x -> A003415(x) and x -> A003961(x), or -1 if no 1 can ever be reached from n.

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

[0, 1, 1, 4, 1, 2, 1, 7, 3, 2, 1, 6, 1, 4, 7, 8, 1, 4, 1, 6, 3, 2, 1, 7, 3, 6, 7, 8, 1, 2, 1, 10, 5, 2, 6, 5, 1, 4, 4, 6, 1, 2, 1, 6, 5, 4, 1, 9, 4, 5, 5, 8, 1, 6, 8, 8, 3, 2, 1, 4, 1, 6, 5, 10, 5, 2, 1, 5, 4, 2, 1, 8, 1, 5, 6, 6, 5, 2, 1, 9, 7, 2, 1, 4, 3, 5, 7, 8, 1, 5, 7, 7, 3, 5, 4, 9, 1, 6, 7, 6, 1, 3, 1, 7, 2]

cp's OEIS Frontend

A353515 The length of the shortest path from n to 1 when using the transitions x -> A003415(x) and x -> A003961(x), or -1 if no 1 can ever be reached from n.

Table of values

List of values

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

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

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