A278061 - cp's OEIS frontend

A278061 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 9; a(n) = a(n-a(n-1)) + a(n-a(n-2)) for n > 9.

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

[1, 2, 3, 4, 5, 6, 7, 8, 9, 3, 10, 11, 5, 12, 6, 7, 13, 15, 10, 8, 15, 19, 12, 16, 14, 14, 10, 27, 12, 18, 15, 25, 23, 19, 18, 28, 19, 13, 22, 25, 17, 27, 21, 25, 24, 34, 17, 27, 44, 18, 30, 38, 18, 35, 27, 27, 36, 34, 26, 33, 45, 25, 28, 50]

cp's OEIS Frontend

A278061 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 9; a(n) = a(n-a(n-1)) + a(n-a(n-2)) for n > 9.

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	3
11	10
12	11
13	5
14	12
15	6
16	7
17	13
18	15
19	10
20	8
21	15
22	19
23	12
24	16
25	14
26	14
27	10
28	27
29	12
30	18
31	15
32	25
33	23
34	19
35	18
36	28
37	19
38	13
39	22
40	25
41	17
42	27
43	21
44	25
45	24
46	34
47	17
48	27
49	44
50	18
51	30
52	38
53	18
54	35
55	27
56	27
57	36
58	34
59	26
60	33
61	45
62	25
63	28
64	50

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

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