A287422 - cp's OEIS frontend

A287422 a(1) = a(2) = 1; a(n) = n - a(a(n-1)) - a(n-a(n-1)) for n > 2.

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

[1, 1, 1, 2, 3, 4, 4, 4, 4, 4, 5, 5, 6, 6, 7, 8, 9, 10, 11, 11, 12, 13, 13, 13, 14, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 19, 19, 19, 19, 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 26, 26, 27, 28, 29, 29, 30, 31, 32, 33, 34, 35, 36, 36, 37, 38, 39, 40, 40, 41, 42, 42, 42, 43, 44, 45, 46, 46]

cp's OEIS Frontend

A287422 a(1) = a(2) = 1; a(n) = n - a(a(n-1)) - a(n-a(n-1)) for n > 2.

Table of values

List of values

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

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

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