A373227 - cp's OEIS frontend

A373227 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 7; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 7.

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

[1, 2, 3, 4, 5, 6, 7, 6, 8, 9, 10, 9, 11, 12, 13, 12, 14, 15, 16, 15, 17, 18, 17, 20, 18, 20, 22, 21, 21, 22, 26, 25, 23, 24, 28, 26, 29, 26, 31, 30, 32, 28, 34, 30, 37, 29, 38, 35, 37, 33, 39, 40, 38, 37, 42, 43, 40, 40, 44, 42, 47, 43, 44, 46, 51, 46, 46, 50, 50, 50, 51, 53, 50]

cp's OEIS Frontend

A373227 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 7; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 7.

Table of values

List of values

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

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

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