A362890 - cp's OEIS frontend

A362890 a(1)=a(2)=1. For n>2, a(n) is the number of times that a(n-1) and a(n-2) are adjacent in the sequence thus far (in any order).

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

[1, 1, 1, 2, 1, 2, 3, 1, 1, 3, 2, 2, 1, 4, 1, 2, 5, 1, 1, 4, 3, 1, 3, 4, 2, 1, 6, 1, 2, 7, 1, 1, 5, 2, 2, 2, 3, 3, 1, 5, 3, 1, 6, 3, 1, 7, 2, 2, 4, 2, 3, 4, 3, 4, 5, 1, 4, 4, 1, 5, 5, 1, 6, 4, 1, 6, 5, 1, 7, 3, 1, 8, 1, 2, 8, 1, 3, 9, 1, 1, 6, 6, 1, 7, 4, 1]

cp's OEIS Frontend

A362890 a(1)=a(2)=1. For n>2, a(n) is the number of times that a(n-1) and a(n-2) are adjacent in the sequence thus far (in any order).

Table of values

List of values

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

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

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