A378677 - cp's OEIS frontend

A378677 a(n)=a(n-1) + prime(n) for n prime, and a(n)=-a(n-1) otherwise, with a(0)=0, with duplicates removed afterwards.

n	a(n)
0	0
1	3
2	8
3	-8
4	-3
5	14
6	-14
7	17
8	-17
9	24
10	-24
11	35
12	-35
13	32
14	-32
15	51
16	-51
17	58
18	-58
19	69
20	-69
21	88
22	-88
23	91
24	-91
25	100
26	-100
27	111
28	-111
29	130
30	-130
31	147
32	-147
33	136
34	-136
35	195
36	-195
37	158
38	-158
39	209
40	-209
41	192
42	-192
43	239
44	-239
45	222
46	-222
47	287
48	-287
49	260
50	-260
51	303
52	-303

[0, 3, 8, -8, -3, 14, -14, 17, -17, 24, -24, 35, -35, 32, -32, 51, -51, 58, -58, 69, -69, 88, -88, 91, -91, 100, -100, 111, -111, 130, -130, 147, -147, 136, -136, 195, -195, 158, -158, 209, -209, 192, -192, 239, -239, 222, -222, 287, -287, 260, -260, 303, -303]

cp's OEIS Frontend

A378677 a(n)=a(n-1) + prime(n) for n prime, and a(n)=-a(n-1) otherwise, with a(0)=0, with duplicates removed afterwards.

Table of values

List of values