A309554 - cp's OEIS frontend

A309554 a(1) = a(6) = 1, a(2) = a(3) = a(8) = 2, a(4) = a(7) = 7, a(5) = 5; a(n) = a(n-a(n-1)) + a(n-a(n-3)) for n > 8.

n	a(n)
1	1
2	2
3	2
4	7
5	5
6	1
7	7
8	2
9	9
10	3
11	11
12	3
13	6
14	4
15	14
16	5
17	9
18	16
19	6
20	15
21	6
22	10
23	8
24	21
25	21
26	21
27	2
28	28
29	3
30	30
31	3
32	6
33	4
34	33
35	5
36	9
37	35
38	6
39	34
40	6
41	10
42	8
43	40
44	40
45	40
46	2
47	47
48	3
49	49
50	3
51	6
52	4
53	52
54	5
55	9
56	54
57	6
58	53
59	6
60	10
61	8
62	59
63	59
64	59
65	2
66	66
67	3
68	68
69	3
70	6
71	4
72	71
73	5
74	9
75	73
76	6
77	72
78	6
79	10
80	8
81	78
82	78
83	78
84	2
85	85
86	3
87	87
88	3
89	6
90	4

[1, 2, 2, 7, 5, 1, 7, 2, 9, 3, 11, 3, 6, 4, 14, 5, 9, 16, 6, 15, 6, 10, 8, 21, 21, 21, 2, 28, 3, 30, 3, 6, 4, 33, 5, 9, 35, 6, 34, 6, 10, 8, 40, 40, 40, 2, 47, 3, 49, 3, 6, 4, 52, 5, 9, 54, 6, 53, 6, 10, 8, 59, 59, 59, 2, 66, 3, 68, 3, 6, 4, 71, 5, 9, 73, 6, 72, 6, 10, 8, 78, 78, 78, 2, 85, 3, 87, 3, 6, 4]

cp's OEIS Frontend

A309554 a(1) = a(6) = 1, a(2) = a(3) = a(8) = 2, a(4) = a(7) = 7, a(5) = 5; a(n) = a(n-a(n-1)) + a(n-a(n-3)) for n > 8.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	7
5	5
6	1
7	7
8	2
9	9
10	3
11	11
12	3
13	6
14	4
15	14
16	5
17	9
18	16
19	6
20	15
21	6
22	10
23	8
24	21
25	21
26	21
27	2
28	28
29	3
30	30
31	3
32	6
33	4
34	33
35	5
36	9
37	35
38	6
39	34
40	6
41	10
42	8
43	40
44	40
45	40
46	2
47	47
48	3
49	49
50	3
51	6
52	4
53	52
54	5
55	9
56	54
57	6
58	53
59	6
60	10
61	8
62	59
63	59
64	59
65	2
66	66
67	3
68	68
69	3
70	6
71	4
72	71
73	5
74	9
75	73
76	6
77	72
78	6
79	10
80	8
81	78
82	78
83	78
84	2
85	85
86	3
87	87
88	3
89	6
90	4

n	a(n)
1	1
2	2
3	2
4	7
5	5
6	1
7	7
8	2
9	9
10	3
11	11
12	3
13	6
14	4
15	14
16	5
17	9
18	16
19	6
20	15
21	6
22	10
23	8
24	21
25	21
26	21
27	2
28	28
29	3
30	30
31	3
32	6
33	4
34	33
35	5
36	9
37	35
38	6
39	34
40	6
41	10
42	8
43	40
44	40
45	40
46	2
47	47
48	3
49	49
50	3
51	6
52	4
53	52
54	5
55	9
56	54
57	6
58	53
59	6
60	10
61	8
62	59
63	59
64	59
65	2
66	66
67	3
68	68
69	3
70	6
71	4
72	71
73	5
74	9
75	73
76	6
77	72
78	6
79	10
80	8
81	78
82	78
83	78
84	2
85	85
86	3
87	87
88	3
89	6
90	4

n	a(n)
1	1
2	2
3	2
4	7
5	5
6	1
7	7
8	2
9	9
10	3
11	11
12	3
13	6
14	4
15	14
16	5
17	9
18	16
19	6
20	15
21	6
22	10
23	8
24	21
25	21
26	21
27	2
28	28
29	3
30	30
31	3
32	6
33	4
34	33
35	5
36	9
37	35
38	6
39	34
40	6
41	10
42	8
43	40
44	40
45	40
46	2
47	47
48	3
49	49
50	3
51	6
52	4
53	52
54	5
55	9
56	54
57	6
58	53
59	6
60	10
61	8
62	59
63	59
64	59
65	2
66	66
67	3
68	68
69	3
70	6
71	4
72	71
73	5
74	9
75	73
76	6
77	72
78	6
79	10
80	8
81	78
82	78
83	78
84	2
85	85
86	3
87	87
88	3
89	6
90	4