A077133 - cp's OEIS frontend

A077133 a(n) is the difference between the sum of the first n even-indexed primes and the sum of the first n odd-indexed primes.

n	a(n)
1	1
2	3
3	5
4	7
5	13
6	19
7	21
8	27
9	29
10	33
11	39
12	45
13	49
14	53
15	57
16	61
17	63
18	65
19	71
20	77
21	79
22	81
23	83
24	95
25	97
26	103
27	113
28	119
29	121
30	125
31	135
32	139
33	143
34	149
35	151
36	157
37	163
38	167
39	175
40	183
41	185
42	187
43	191
44	199
45	201
46	213
47	217
48	221
49	233
50	251
51	261
52	267
53	273
54	279
55	281
56	287
57	289
58	299

[1, 3, 5, 7, 13, 19, 21, 27, 29, 33, 39, 45, 49, 53, 57, 61, 63, 65, 71, 77, 79, 81, 83, 95, 97, 103, 113, 119, 121, 125, 135, 139, 143, 149, 151, 157, 163, 167, 175, 183, 185, 187, 191, 199, 201, 213, 217, 221, 233, 251, 261, 267, 273, 279, 281, 287, 289, 299]

cp's OEIS Frontend

A077133 a(n) is the difference between the sum of the first n even-indexed primes and the sum of the first n odd-indexed primes.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	7
5	13
6	19
7	21
8	27
9	29
10	33
11	39
12	45
13	49
14	53
15	57
16	61
17	63
18	65
19	71
20	77
21	79
22	81
23	83
24	95
25	97
26	103
27	113
28	119
29	121
30	125
31	135
32	139
33	143
34	149
35	151
36	157
37	163
38	167
39	175
40	183
41	185
42	187
43	191
44	199
45	201
46	213
47	217
48	221
49	233
50	251
51	261
52	267
53	273
54	279
55	281
56	287
57	289
58	299

n	a(n)
1	1
2	3
3	5
4	7
5	13
6	19
7	21
8	27
9	29
10	33
11	39
12	45
13	49
14	53
15	57
16	61
17	63
18	65
19	71
20	77
21	79
22	81
23	83
24	95
25	97
26	103
27	113
28	119
29	121
30	125
31	135
32	139
33	143
34	149
35	151
36	157
37	163
38	167
39	175
40	183
41	185
42	187
43	191
44	199
45	201
46	213
47	217
48	221
49	233
50	251
51	261
52	267
53	273
54	279
55	281
56	287
57	289
58	299

n	a(n)
1	1
2	3
3	5
4	7
5	13
6	19
7	21
8	27
9	29
10	33
11	39
12	45
13	49
14	53
15	57
16	61
17	63
18	65
19	71
20	77
21	79
22	81
23	83
24	95
25	97
26	103
27	113
28	119
29	121
30	125
31	135
32	139
33	143
34	149
35	151
36	157
37	163
38	167
39	175
40	183
41	185
42	187
43	191
44	199
45	201
46	213
47	217
48	221
49	233
50	251
51	261
52	267
53	273
54	279
55	281
56	287
57	289
58	299