A275117 - cp's OEIS frontend

A275117 Direction where Langton's ant is looking after n moves: 1 if looking in starting direction, 2 if looking 90 degrees clockwise from starting direction, 3 if looking 90 degrees counterclockwise from starting direction, or 4 if looking in direction opposite to starting direction.

n	a(n)
0	1
1	2
2	4
3	3
4	1
5	3
6	1
7	2
8	4
9	3
10	4
11	3
12	1
13	2
14	4
15	2
16	1
17	3
18	4
19	3
20	4
21	3
22	1
23	2
24	4
25	2
26	4
27	3
28	1
29	2
30	1
31	3
32	4
33	2
34	4
35	2
36	4
37	3
38	1
39	2
40	1
41	2
42	4
43	3
44	1
45	3
46	4
47	2
48	1
49	2
50	1
51	3
52	1
53	2
54	1
55	2
56	4
57	3
58	1
59	3
60	4
61	2
62	1
63	2
64	1
65	2
66	4
67	3
68	1
69	3
70	1
71	2
72	4
73	3
74	4
75	2
76	1
77	3
78	1
79	3
80	1
81	2
82	4
83	3
84	4
85	3
86	1

[1, 2, 4, 3, 1, 3, 1, 2, 4, 3, 4, 3, 1, 2, 4, 2, 1, 3, 4, 3, 4, 3, 1, 2, 4, 2, 4, 3, 1, 2, 1, 3, 4, 2, 4, 2, 4, 3, 1, 2, 1, 2, 4, 3, 1, 3, 4, 2, 1, 2, 1, 3, 1, 2, 1, 2, 4, 3, 1, 3, 4, 2, 1, 2, 1, 2, 4, 3, 1, 3, 1, 2, 4, 3, 4, 2, 1, 3, 1, 3, 1, 2, 4, 3, 4, 3, 1]

cp's OEIS Frontend

A275117 Direction where Langton's ant is looking after n moves: 1 if looking in starting direction, 2 if looking 90 degrees clockwise from starting direction, 3 if looking 90 degrees counterclockwise from starting direction, or 4 if looking in direction opposite to starting direction.

Table of values

List of values

n	a(n)
0	1
1	2
2	4
3	3
4	1
5	3
6	1
7	2
8	4
9	3
10	4
11	3
12	1
13	2
14	4
15	2
16	1
17	3
18	4
19	3
20	4
21	3
22	1
23	2
24	4
25	2
26	4
27	3
28	1
29	2
30	1
31	3
32	4
33	2
34	4
35	2
36	4
37	3
38	1
39	2
40	1
41	2
42	4
43	3
44	1
45	3
46	4
47	2
48	1
49	2
50	1
51	3
52	1
53	2
54	1
55	2
56	4
57	3
58	1
59	3
60	4
61	2
62	1
63	2
64	1
65	2
66	4
67	3
68	1
69	3
70	1
71	2
72	4
73	3
74	4
75	2
76	1
77	3
78	1
79	3
80	1
81	2
82	4
83	3
84	4
85	3
86	1

n	a(n)
0	1
1	2
2	4
3	3
4	1
5	3
6	1
7	2
8	4
9	3
10	4
11	3
12	1
13	2
14	4
15	2
16	1
17	3
18	4
19	3
20	4
21	3
22	1
23	2
24	4
25	2
26	4
27	3
28	1
29	2
30	1
31	3
32	4
33	2
34	4
35	2
36	4
37	3
38	1
39	2
40	1
41	2
42	4
43	3
44	1
45	3
46	4
47	2
48	1
49	2
50	1
51	3
52	1
53	2
54	1
55	2
56	4
57	3
58	1
59	3
60	4
61	2
62	1
63	2
64	1
65	2
66	4
67	3
68	1
69	3
70	1
71	2
72	4
73	3
74	4
75	2
76	1
77	3
78	1
79	3
80	1
81	2
82	4
83	3
84	4
85	3
86	1

n	a(n)
0	1
1	2
2	4
3	3
4	1
5	3
6	1
7	2
8	4
9	3
10	4
11	3
12	1
13	2
14	4
15	2
16	1
17	3
18	4
19	3
20	4
21	3
22	1
23	2
24	4
25	2
26	4
27	3
28	1
29	2
30	1
31	3
32	4
33	2
34	4
35	2
36	4
37	3
38	1
39	2
40	1
41	2
42	4
43	3
44	1
45	3
46	4
47	2
48	1
49	2
50	1
51	3
52	1
53	2
54	1
55	2
56	4
57	3
58	1
59	3
60	4
61	2
62	1
63	2
64	1
65	2
66	4
67	3
68	1
69	3
70	1
71	2
72	4
73	3
74	4
75	2
76	1
77	3
78	1
79	3
80	1
81	2
82	4
83	3
84	4
85	3
86	1