A324664 - cp's OEIS frontend

A324664 Starting at n, a(n) is the smallest distance from zero for which the next move is a step away from zero, or zero if no such move is ever made, according to the following rules. On the k-th step (k=1,2,3,...) move a distance of k in the direction of zero. If the number landed on has been landed on before, move a distance of k away from zero instead.

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

[0, 0, 1, 0, 3, 1, 0, 5, 4, 1, 0, 7, 6, 1, 4, 0, 7, 8, 7, 1, 2, 0, 5, 4, 1, 2, 7, 1, 0, 13, 2, 1, 10, 1, 1, 7, 0, 5, 1, 3, 2, 1, 10, 1, 2, 0, 17, 16, 1, 14, 1, 2, 11, 10, 1, 0, 1, 1, 17, 1, 15, 1, 1, 1, 11, 10, 0, 4, 1, 2, 1, 1, 1, 15, 1, 13, 1, 1, 0, 2, 1, 1]

cp's OEIS Frontend

Table of values

List of values

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

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

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