A022835 - cp's OEIS frontend

A022835 a(n) = c(1)p(3) + ... + c(n)p(n+2), where c(i) = 1 if a(i-1) < p(i+2) and c(i) = -1 if a(i-1) >= p(i+2) (p(i) = primes).

n	a(n)
0	5
1	12
2	1
3	14
4	31
5	12
6	35
7	6
8	37
9	0
10	41
11	84
12	37
13	90
14	31
15	92
16	25
17	96
18	23
19	102
20	19
21	108
22	11
23	112
24	9
25	116
26	7
27	120
28	247
29	116
30	253
31	114
32	263
33	112
34	269
35	106
36	273
37	100
38	279
39	98
40	289
41	96
42	293
43	94
44	305
45	82
46	309
47	80
48	313
49	74
50	315
51	64
52	321
53	58
54	327
55	56
56	333
57	52
58	335
59	42

[5, 12, 1, 14, 31, 12, 35, 6, 37, 0, 41, 84, 37, 90, 31, 92, 25, 96, 23, 102, 19, 108, 11, 112, 9, 116, 7, 120, 247, 116, 253, 114, 263, 112, 269, 106, 273, 100, 279, 98, 289, 96, 293, 94, 305, 82, 309, 80, 313, 74, 315, 64, 321, 58, 327, 56, 333, 52, 335, 42]

cp's OEIS Frontend

A022835 a(n) = c(1)p(3) + ... + c(n)p(n+2), where c(i) = 1 if a(i-1) < p(i+2) and c(i) = -1 if a(i-1) >= p(i+2) (p(i) = primes).

Table of values

List of values

n	a(n)
0	5
1	12
2	1
3	14
4	31
5	12
6	35
7	6
8	37
9	0
10	41
11	84
12	37
13	90
14	31
15	92
16	25
17	96
18	23
19	102
20	19
21	108
22	11
23	112
24	9
25	116
26	7
27	120
28	247
29	116
30	253
31	114
32	263
33	112
34	269
35	106
36	273
37	100
38	279
39	98
40	289
41	96
42	293
43	94
44	305
45	82
46	309
47	80
48	313
49	74
50	315
51	64
52	321
53	58
54	327
55	56
56	333
57	52
58	335
59	42

n	a(n)
0	5
1	12
2	1
3	14
4	31
5	12
6	35
7	6
8	37
9	0
10	41
11	84
12	37
13	90
14	31
15	92
16	25
17	96
18	23
19	102
20	19
21	108
22	11
23	112
24	9
25	116
26	7
27	120
28	247
29	116
30	253
31	114
32	263
33	112
34	269
35	106
36	273
37	100
38	279
39	98
40	289
41	96
42	293
43	94
44	305
45	82
46	309
47	80
48	313
49	74
50	315
51	64
52	321
53	58
54	327
55	56
56	333
57	52
58	335
59	42

n	a(n)
0	5
1	12
2	1
3	14
4	31
5	12
6	35
7	6
8	37
9	0
10	41
11	84
12	37
13	90
14	31
15	92
16	25
17	96
18	23
19	102
20	19
21	108
22	11
23	112
24	9
25	116
26	7
27	120
28	247
29	116
30	253
31	114
32	263
33	112
34	269
35	106
36	273
37	100
38	279
39	98
40	289
41	96
42	293
43	94
44	305
45	82
46	309
47	80
48	313
49	74
50	315
51	64
52	321
53	58
54	327
55	56
56	333
57	52
58	335
59	42