A356993 - cp's OEIS frontend

A356993 a(n) = b(n - b(n - b(n - b(n)))) for n >= 2, where b(n) = A356988(n).

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

[1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 10, 11, 11, 11, 11, 11, 11, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 15, 16, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 23, 24, 25, 26, 27, 28, 29, 29, 29, 29]

cp's OEIS Frontend

A356993 a(n) = b(n - b(n - b(n - b(n)))) for n >= 2, where b(n) = A356988(n).

Table of values

List of values

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

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

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