A373233 - cp's OEIS frontend

A373233 Relative of Hofstadter Q-sequence: a(n) = 0 for n <= 0, a(n) = n for 1 <= n <= 13; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 13.

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

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 6, 14, 15, 16, 9, 17, 18, 19, 12, 20, 21, 22, 15, 23, 24, 17, 26, 18, 26, 28, 29, 22, 21, 37, 32, 18, 23, 38, 42, 24, 26, 39, 37, 37, 31, 33, 46, 32, 41, 38, 40, 36, 42, 49, 36, 46, 38, 56, 42, 48, 35, 62, 31, 52, 58, 59, 32, 43, 53, 82]

cp's OEIS Frontend

A373233 Relative of Hofstadter Q-sequence: a(n) = 0 for n <= 0, a(n) = n for 1 <= n <= 13; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 13.

Table of values

List of values

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

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

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