A175078 - cp's OEIS frontend

A175078 Number of iterations of {r mod (max prime p < r)} needed to reach 1 or 2 starting at r = n.

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

[0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2]

cp's OEIS Frontend

A175078 Number of iterations of {r mod (max prime p < r)} needed to reach 1 or 2 starting at r = n.

Table of values

List of values

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

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

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