A304490 - cp's OEIS frontend

A304490 a(1) = a(2) = a(3) = 1, a(4) = 5, a(5) = 6, a(6) = 4; a(n) = a(n-a(n-2)) + a(n-a(n-4)) for n > 6.

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

[1, 1, 1, 5, 6, 4, 5, 6, 6, 9, 10, 5, 6, 12, 12, 15, 16, 5, 6, 18, 18, 21, 22, 5, 6, 24, 24, 27, 28, 5, 6, 30, 30, 33, 34, 5, 6, 36, 36, 39, 40, 5, 6, 42, 42, 45, 46, 5, 6, 48, 48, 51, 52, 5, 6, 54, 54, 57, 58, 5, 6, 60, 60, 63, 64, 5, 6, 66, 66, 69, 70, 5, 6, 72, 72, 75, 76, 5, 6, 78, 78, 81, 82, 5, 6]

cp's OEIS Frontend

A304490 a(1) = a(2) = a(3) = 1, a(4) = 5, a(5) = 6, a(6) = 4; a(n) = a(n-a(n-2)) + a(n-a(n-4)) for n > 6.

Table of values

List of values

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

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

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