A174218 - cp's OEIS frontend

A174218 An absolute difference sequence based on A087655: a(n)=If[Mod[A087655(n), 3] == 1, a(n - 1) - (-1)^nn, a(n - 1) + (-1)^nn].

n	a(n)
0	1
1	0
2	-2
3	1
4	5
5	10
6	16
7	9
8	17
9	26
10	16
11	5
12	-7
13	6
14	-8
15	7
16	23
17	6
18	-12
19	7
20	-13
21	8
22	30
23	7
24	31
25	6
26	32
27	5
28	33
29	4
30	34
31	3
32	35
33	2
34	-32
35	-67
36	-31
37	-68
38	-30
39	-69
40	-29
41	12
42	54
43	11
44	55
45	100
46	54
47	101
48	149
49	100
50	150
51	99
52	47
53	-6
54	48
55	-7
56	-63
57	-120
58	-62
59	-121
60	-61
61	-122
62	-184
63	-247
64	-183

[1, 0, -2, 1, 5, 10, 16, 9, 17, 26, 16, 5, -7, 6, -8, 7, 23, 6, -12, 7, -13, 8, 30, 7, 31, 6, 32, 5, 33, 4, 34, 3, 35, 2, -32, -67, -31, -68, -30, -69, -29, 12, 54, 11, 55, 100, 54, 101, 149, 100, 150, 99, 47, -6, 48, -7, -63, -120, -62, -121, -61, -122, -184, -247, -183]

cp's OEIS Frontend

A174218 An absolute difference sequence based on A087655: a(n)=If[Mod[A087655(n), 3] == 1, a(n - 1) - (-1)^nn, a(n - 1) + (-1)^nn].

Table of values

List of values

cp's OEIS Frontend

A174218 An absolute difference sequence based on A087655: a(n)=If[Mod[A087655(n), 3] == 1, a(n - 1) - (-1)^n*n, a(n - 1) + (-1)^n*n].

Table of values

List of values

A174218 An absolute difference sequence based on A087655: a(n)=If[Mod[A087655(n), 3] == 1, a(n - 1) - (-1)^nn, a(n - 1) + (-1)^nn].