A277488 - cp's OEIS frontend

A277488 a(n) = number of integers one less than a prime encountered before reaching (n^2)-1 when starting from k = ((n+1)^2)-1 and iterating map k -> k - A002828(k).

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	1
7	0
8	3
9	2
10	3
11	2
12	1
13	1
14	2
15	1
16	3
17	2
18	3
19	1
20	2
21	4
22	4
23	1
24	2
25	3
26	2
27	2
28	3
29	4
30	3
31	3
32	4
33	3
34	4
35	3
36	2
37	4
38	5
39	5
40	4
41	4
42	3
43	4
44	5
45	4
46	4
47	3
48	4
49	6
50	4
51	6
52	8
53	4
54	4
55	3
56	5
57	7
58	3
59	7
60	2
61	6
62	6
63	4
64	7
65	7
66	4
67	5
68	7
69	4
70	8
71	6
72	4
73	4
74	3
75	6
76	11
77	4
78	5
79	5
80	9
81	6
82	3
83	6
84	7
85	6
86	9
87	9
88	8
89	11
90	6
91	5
92	5
93	7
94	8
95	7
96	7
97	5
98	8
99	9
100	5
101	7
102	6
103	5
104	6
105	7
106	6
107	8
108	9
109	6
110	9
111	6
112	15
113	8
114	10
115	9
116	7
117	10
118	6
119	6
120	10

[0, 1, 0, 2, 1, 1, 0, 3, 2, 3, 2, 1, 1, 2, 1, 3, 2, 3, 1, 2, 4, 4, 1, 2, 3, 2, 2, 3, 4, 3, 3, 4, 3, 4, 3, 2, 4, 5, 5, 4, 4, 3, 4, 5, 4, 4, 3, 4, 6, 4, 6, 8, 4, 4, 3, 5, 7, 3, 7, 2, 6, 6, 4, 7, 7, 4, 5, 7, 4, 8, 6, 4, 4, 3, 6, 11, 4, 5, 5, 9, 6, 3, 6, 7, 6, 9, 9, 8, 11, 6, 5, 5, 7, 8, 7, 7, 5, 8, 9, 5, 7, 6, 5, 6, 7, 6, 8, 9, 6, 9, 6, 15, 8, 10, 9, 7, 10, 6, 6, 10]

cp's OEIS Frontend

A277488 a(n) = number of integers one less than a prime encountered before reaching (n^2)-1 when starting from k = ((n+1)^2)-1 and iterating map k -> k - A002828(k).

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	1
7	0
8	3
9	2
10	3
11	2
12	1
13	1
14	2
15	1
16	3
17	2
18	3
19	1
20	2
21	4
22	4
23	1
24	2
25	3
26	2
27	2
28	3
29	4
30	3
31	3
32	4
33	3
34	4
35	3
36	2
37	4
38	5
39	5
40	4
41	4
42	3
43	4
44	5
45	4
46	4
47	3
48	4
49	6
50	4
51	6
52	8
53	4
54	4
55	3
56	5
57	7
58	3
59	7
60	2
61	6
62	6
63	4
64	7
65	7
66	4
67	5
68	7
69	4
70	8
71	6
72	4
73	4
74	3
75	6
76	11
77	4
78	5
79	5
80	9
81	6
82	3
83	6
84	7
85	6
86	9
87	9
88	8
89	11
90	6
91	5
92	5
93	7
94	8
95	7
96	7
97	5
98	8
99	9
100	5
101	7
102	6
103	5
104	6
105	7
106	6
107	8
108	9
109	6
110	9
111	6
112	15
113	8
114	10
115	9
116	7
117	10
118	6
119	6
120	10

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	1
7	0
8	3
9	2
10	3
11	2
12	1
13	1
14	2
15	1
16	3
17	2
18	3
19	1
20	2
21	4
22	4
23	1
24	2
25	3
26	2
27	2
28	3
29	4
30	3
31	3
32	4
33	3
34	4
35	3
36	2
37	4
38	5
39	5
40	4
41	4
42	3
43	4
44	5
45	4
46	4
47	3
48	4
49	6
50	4
51	6
52	8
53	4
54	4
55	3
56	5
57	7
58	3
59	7
60	2
61	6
62	6
63	4
64	7
65	7
66	4
67	5
68	7
69	4
70	8
71	6
72	4
73	4
74	3
75	6
76	11
77	4
78	5
79	5
80	9
81	6
82	3
83	6
84	7
85	6
86	9
87	9
88	8
89	11
90	6
91	5
92	5
93	7
94	8
95	7
96	7
97	5
98	8
99	9
100	5
101	7
102	6
103	5
104	6
105	7
106	6
107	8
108	9
109	6
110	9
111	6
112	15
113	8
114	10
115	9
116	7
117	10
118	6
119	6
120	10

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	1
7	0
8	3
9	2
10	3
11	2
12	1
13	1
14	2
15	1
16	3
17	2
18	3
19	1
20	2
21	4
22	4
23	1
24	2
25	3
26	2
27	2
28	3
29	4
30	3
31	3
32	4
33	3
34	4
35	3
36	2
37	4
38	5
39	5
40	4
41	4
42	3
43	4
44	5
45	4
46	4
47	3
48	4
49	6
50	4
51	6
52	8
53	4
54	4
55	3
56	5
57	7
58	3
59	7
60	2
61	6
62	6
63	4
64	7
65	7
66	4
67	5
68	7
69	4
70	8
71	6
72	4
73	4
74	3
75	6
76	11
77	4
78	5
79	5
80	9
81	6
82	3
83	6
84	7
85	6
86	9
87	9
88	8
89	11
90	6
91	5
92	5
93	7
94	8
95	7
96	7
97	5
98	8
99	9
100	5
101	7
102	6
103	5
104	6
105	7
106	6
107	8
108	9
109	6
110	9
111	6
112	15
113	8
114	10
115	9
116	7
117	10
118	6
119	6
120	10