A296440 - cp's OEIS frontend

A296440 a(1) = 2, a(2) = a(3) = 3, a(4) = 4, a(5) = a(6) = 6; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 6.

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

[2, 3, 3, 4, 6, 6, 7, 8, 8, 9, 9, 10, 11, 13, 13, 12, 14, 16, 16, 14, 19, 17, 18, 19, 21, 21, 20, 22, 23, 24, 23, 24, 25, 26, 26, 27, 27, 28, 29, 30, 30, 31, 32, 34, 33, 34, 35, 37, 36, 37, 39, 36, 39, 42, 39, 41, 41, 44, 45, 41, 40, 50, 46, 48, 43, 48, 51, 49, 49, 54, 48, 53, 51, 58, 50, 58, 52, 57, 56, 59, 57, 60, 58]

cp's OEIS Frontend

A296440 a(1) = 2, a(2) = a(3) = 3, a(4) = 4, a(5) = a(6) = 6; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 6.

Table of values

List of values

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

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

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