A304337 - cp's OEIS frontend

A304337 Lexicographically earliest fractal-like sequence such that the erasure of all pairs of contiguous terms of opposite parity leaves the sequence unchanged.

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

[1, 2, 4, 3, 1, 5, 6, 2, 4, 8, 7, 3, 1, 5, 9, 10, 6, 2, 4, 8, 12, 11, 7, 3, 1, 5, 9, 13, 14, 10, 6, 2, 4, 8, 12, 16, 15, 11, 7, 3, 1, 5, 9, 13, 17, 18, 14, 10, 6, 2, 4, 8, 12, 16, 20, 19, 15, 11, 7, 3, 1, 5, 9, 13, 17, 21, 22, 18, 14, 10, 6, 2, 4, 8, 12, 16, 20, 24, 23, 19, 15, 11, 7, 3, 1]

cp's OEIS Frontend

A304337 Lexicographically earliest fractal-like sequence such that the erasure of all pairs of contiguous terms of opposite parity leaves the sequence unchanged.

Table of values

List of values

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

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

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