A200780 - cp's OEIS frontend

A200780 a(n) = number of i in the range 1 <= i <= n such that b(i)=b(n), where b is the sequence A181391 taken with offset 1.

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

[1, 2, 1, 3, 1, 4, 2, 3, 2, 1, 5, 1, 6, 4, 2, 2, 1, 7, 3, 1, 8, 2, 5, 1, 9, 2, 2, 3, 3, 1, 10, 4, 4, 4, 1, 11, 5, 5, 6, 6, 1, 12, 5, 1, 13, 6, 1, 14, 7, 8, 3, 1, 15, 7, 2, 1, 16, 3, 1, 17, 9, 2, 1, 18, 4, 1, 19, 10, 2, 11, 7, 1, 20, 6, 2, 12, 7, 13, 8, 2, 1, 21, 3, 1, 22, 14, 3, 3, 1, 23, 8, 1, 24, 15, 4, 5, 4]

cp's OEIS Frontend

A200780 a(n) = number of i in the range 1 <= i <= n such that b(i)=b(n), where b is the sequence A181391 taken with offset 1.

Table of values

List of values

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

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

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