A025127 - cp's OEIS frontend

A025127 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = A023533, t = A000040 (primes).

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	30
8	36
9	46
10	50
11	60
12	70
13	74
14	84
15	94
16	102
17	108
18	120
19	161
20	171
21	187
22	197
23	209
24	229
25	243
26	253
27	271
28	281
29	289
30	313
31	323
32	339
33	363
34	381
35	391
36	403
37	421
38	431
39	530
40	552
41	568
42	592
43	618
44	630
45	650
46	674
47	696
48	712
49	746
50	768
51	794
52	802
53	830
54	846
55	872
56	906
57	922
58	942
59	962

[3, 5, 7, 11, 13, 17, 30, 36, 46, 50, 60, 70, 74, 84, 94, 102, 108, 120, 161, 171, 187, 197, 209, 229, 243, 253, 271, 281, 289, 313, 323, 339, 363, 381, 391, 403, 421, 431, 530, 552, 568, 592, 618, 630, 650, 674, 696, 712, 746, 768, 794, 802, 830, 846, 872, 906, 922, 942, 962]

cp's OEIS Frontend

A025127 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = A023533, t = A000040 (primes).

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	30
8	36
9	46
10	50
11	60
12	70
13	74
14	84
15	94
16	102
17	108
18	120
19	161
20	171
21	187
22	197
23	209
24	229
25	243
26	253
27	271
28	281
29	289
30	313
31	323
32	339
33	363
34	381
35	391
36	403
37	421
38	431
39	530
40	552
41	568
42	592
43	618
44	630
45	650
46	674
47	696
48	712
49	746
50	768
51	794
52	802
53	830
54	846
55	872
56	906
57	922
58	942
59	962

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	30
8	36
9	46
10	50
11	60
12	70
13	74
14	84
15	94
16	102
17	108
18	120
19	161
20	171
21	187
22	197
23	209
24	229
25	243
26	253
27	271
28	281
29	289
30	313
31	323
32	339
33	363
34	381
35	391
36	403
37	421
38	431
39	530
40	552
41	568
42	592
43	618
44	630
45	650
46	674
47	696
48	712
49	746
50	768
51	794
52	802
53	830
54	846
55	872
56	906
57	922
58	942
59	962

cp's OEIS Frontend

A025127 a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = A023533, t = A000040 (primes).

Table of values

List of values

A025127 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = A023533, t = A000040 (primes).

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	30
8	36
9	46
10	50
11	60
12	70
13	74
14	84
15	94
16	102
17	108
18	120
19	161
20	171
21	187
22	197
23	209
24	229
25	243
26	253
27	271
28	281
29	289
30	313
31	323
32	339
33	363
34	381
35	391
36	403
37	421
38	431
39	530
40	552
41	568
42	592
43	618
44	630
45	650
46	674
47	696
48	712
49	746
50	768
51	794
52	802
53	830
54	846
55	872
56	906
57	922
58	942
59	962