A377090 - cp's OEIS frontend

A377090 a(0) = 0; thereafter, for n > 0, a(n) is the least integer (in absolute value) not yet in the sequence such that the absolute difference between a(n-1) and a(n) is a prime number; in case of a tie, preference is given to the positive value.

n	a(n)
0	0
1	2
2	-1
3	1
4	-2
5	3
6	-4
7	-6
8	-3
9	4
10	6
11	-5
12	-7
13	-9
14	8
15	5
16	7
17	9
18	-8
19	-10
20	-12
21	11
22	13
23	10
24	12
25	-11
26	-13
27	-15
28	14
29	16
30	18
31	15
32	-14
33	-16
34	-18
35	19
36	17
37	20
38	-17
39	-19
40	-21
41	22
42	24
43	21
44	-20
45	-22
46	-24
47	23
48	25
49	27
50	-26
51	-23
52	-25
53	-27
54	26
55	28
56	30
57	-29
58	-31
59	-28
60	-30
61	29

[0, 2, -1, 1, -2, 3, -4, -6, -3, 4, 6, -5, -7, -9, 8, 5, 7, 9, -8, -10, -12, 11, 13, 10, 12, -11, -13, -15, 14, 16, 18, 15, -14, -16, -18, 19, 17, 20, -17, -19, -21, 22, 24, 21, -20, -22, -24, 23, 25, 27, -26, -23, -25, -27, 26, 28, 30, -29, -31, -28, -30, 29]

cp's OEIS Frontend

A377090 a(0) = 0; thereafter, for n > 0, a(n) is the least integer (in absolute value) not yet in the sequence such that the absolute difference between a(n-1) and a(n) is a prime number; in case of a tie, preference is given to the positive value.

Table of values

List of values

n	a(n)
0	0
1	2
2	-1
3	1
4	-2
5	3
6	-4
7	-6
8	-3
9	4
10	6
11	-5
12	-7
13	-9
14	8
15	5
16	7
17	9
18	-8
19	-10
20	-12
21	11
22	13
23	10
24	12
25	-11
26	-13
27	-15
28	14
29	16
30	18
31	15
32	-14
33	-16
34	-18
35	19
36	17
37	20
38	-17
39	-19
40	-21
41	22
42	24
43	21
44	-20
45	-22
46	-24
47	23
48	25
49	27
50	-26
51	-23
52	-25
53	-27
54	26
55	28
56	30
57	-29
58	-31
59	-28
60	-30
61	29

n	a(n)
0	0
1	2
2	-1
3	1
4	-2
5	3
6	-4
7	-6
8	-3
9	4
10	6
11	-5
12	-7
13	-9
14	8
15	5
16	7
17	9
18	-8
19	-10
20	-12
21	11
22	13
23	10
24	12
25	-11
26	-13
27	-15
28	14
29	16
30	18
31	15
32	-14
33	-16
34	-18
35	19
36	17
37	20
38	-17
39	-19
40	-21
41	22
42	24
43	21
44	-20
45	-22
46	-24
47	23
48	25
49	27
50	-26
51	-23
52	-25
53	-27
54	26
55	28
56	30
57	-29
58	-31
59	-28
60	-30
61	29

n	a(n)
0	0
1	2
2	-1
3	1
4	-2
5	3
6	-4
7	-6
8	-3
9	4
10	6
11	-5
12	-7
13	-9
14	8
15	5
16	7
17	9
18	-8
19	-10
20	-12
21	11
22	13
23	10
24	12
25	-11
26	-13
27	-15
28	14
29	16
30	18
31	15
32	-14
33	-16
34	-18
35	19
36	17
37	20
38	-17
39	-19
40	-21
41	22
42	24
43	21
44	-20
45	-22
46	-24
47	23
48	25
49	27
50	-26
51	-23
52	-25
53	-27
54	26
55	28
56	30
57	-29
58	-31
59	-28
60	-30
61	29