A317050 - cp's OEIS frontend

A317050 a(0) = 0 and for any n >= 0, a(n+1) is obtained by changing the rightmost possible digit in the negabinary representation of a(n) so as to get a value not yet in the sequence.

n	a(n)
0	0
1	1
2	-1
3	-2
4	2
5	3
6	5
7	4
8	-4
9	-3
10	-5
11	-6
12	-10
13	-9
14	-7
15	-8
16	8
17	9
18	7
19	6
20	10
21	11
22	13
23	12
24	20
25	21
26	19
27	18
28	14
29	15
30	17
31	16
32	-16
33	-15
34	-17
35	-18
36	-14
37	-13
38	-11
39	-12
40	-20
41	-19
42	-21
43	-22
44	-26
45	-25
46	-23
47	-24
48	-40
49	-39
50	-41
51	-42
52	-38
53	-37
54	-35
55	-36
56	-28
57	-27
58	-29
59	-30

[0, 1, -1, -2, 2, 3, 5, 4, -4, -3, -5, -6, -10, -9, -7, -8, 8, 9, 7, 6, 10, 11, 13, 12, 20, 21, 19, 18, 14, 15, 17, 16, -16, -15, -17, -18, -14, -13, -11, -12, -20, -19, -21, -22, -26, -25, -23, -24, -40, -39, -41, -42, -38, -37, -35, -36, -28, -27, -29, -30]

cp's OEIS Frontend

A317050 a(0) = 0 and for any n >= 0, a(n+1) is obtained by changing the rightmost possible digit in the negabinary representation of a(n) so as to get a value not yet in the sequence.

Table of values

List of values

n	a(n)
0	0
1	1
2	-1
3	-2
4	2
5	3
6	5
7	4
8	-4
9	-3
10	-5
11	-6
12	-10
13	-9
14	-7
15	-8
16	8
17	9
18	7
19	6
20	10
21	11
22	13
23	12
24	20
25	21
26	19
27	18
28	14
29	15
30	17
31	16
32	-16
33	-15
34	-17
35	-18
36	-14
37	-13
38	-11
39	-12
40	-20
41	-19
42	-21
43	-22
44	-26
45	-25
46	-23
47	-24
48	-40
49	-39
50	-41
51	-42
52	-38
53	-37
54	-35
55	-36
56	-28
57	-27
58	-29
59	-30

n	a(n)
0	0
1	1
2	-1
3	-2
4	2
5	3
6	5
7	4
8	-4
9	-3
10	-5
11	-6
12	-10
13	-9
14	-7
15	-8
16	8
17	9
18	7
19	6
20	10
21	11
22	13
23	12
24	20
25	21
26	19
27	18
28	14
29	15
30	17
31	16
32	-16
33	-15
34	-17
35	-18
36	-14
37	-13
38	-11
39	-12
40	-20
41	-19
42	-21
43	-22
44	-26
45	-25
46	-23
47	-24
48	-40
49	-39
50	-41
51	-42
52	-38
53	-37
54	-35
55	-36
56	-28
57	-27
58	-29
59	-30

n	a(n)
0	0
1	1
2	-1
3	-2
4	2
5	3
6	5
7	4
8	-4
9	-3
10	-5
11	-6
12	-10
13	-9
14	-7
15	-8
16	8
17	9
18	7
19	6
20	10
21	11
22	13
23	12
24	20
25	21
26	19
27	18
28	14
29	15
30	17
31	16
32	-16
33	-15
34	-17
35	-18
36	-14
37	-13
38	-11
39	-12
40	-20
41	-19
42	-21
43	-22
44	-26
45	-25
46	-23
47	-24
48	-40
49	-39
50	-41
51	-42
52	-38
53	-37
54	-35
55	-36
56	-28
57	-27
58	-29
59	-30