A147952 - cp's OEIS frontend

A147952 a(0) = 0, a(1) = a(2) = 1, and for n >= 3, a(n) = a(a(n-2)) + r(n), where r(n) = a(a(floor(n/3))) when n == 0 or 1 (mod 3) and = a(n - a(floor(n/3))) when n == 2 (mod 3).

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

[0, 1, 1, 2, 2, 3, 2, 3, 4, 3, 3, 5, 3, 4, 5, 4, 5, 7, 4, 4, 6, 4, 4, 8, 4, 6, 6, 4, 4, 8, 4, 6, 10, 5, 6, 7, 4, 5, 9, 5, 5, 8, 6, 7, 7, 5, 5, 10, 6, 6, 7, 5, 6, 8, 4, 6, 8, 4, 6, 8, 4, 6, 10, 4, 5, 8, 5, 6, 8, 6, 8, 6, 6, 4, 10, 4, 5, 8, 5, 6, 13, 4, 6, 8, 4, 6, 8, 6, 8, 6, 6, 4, 10, 4, 5, 8, 6, 7, 10, 6, 6]

cp's OEIS Frontend

A147952 a(0) = 0, a(1) = a(2) = 1, and for n >= 3, a(n) = a(a(n-2)) + r(n), where r(n) = a(a(floor(n/3))) when n == 0 or 1 (mod 3) and = a(n - a(floor(n/3))) when n == 2 (mod 3).

Table of values

List of values

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

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

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