A024328 - cp's OEIS frontend

A024328 a(n) = Sum_{j=1..floor((n+1)/2)} A023531(j)*prime(n-j+1).

n	a(n)
1	0
2	0
3	3
4	5
5	7
6	11
7	13
8	17
9	30
10	36
11	46
12	50
13	60
14	70
15	74
16	84
17	117
18	131
19	139
20	157
21	171
22	177
23	193
24	207
25	221
26	237
27	294
28	310
29	330
30	348
31	360
32	390
33	408
34	424
35	448
36	470
37	486
38	506
39	611
40	625
41	653
42	673
43	699
44	739
45	761
46	781
47	803
48	835
49	863
50	891
51	925
52	953
53	1078
54	1104
55	1136
56	1180
57	1214
58	1244
59	1270

[0, 0, 3, 5, 7, 11, 13, 17, 30, 36, 46, 50, 60, 70, 74, 84, 117, 131, 139, 157, 171, 177, 193, 207, 221, 237, 294, 310, 330, 348, 360, 390, 408, 424, 448, 470, 486, 506, 611, 625, 653, 673, 699, 739, 761, 781, 803, 835, 863, 891, 925, 953, 1078, 1104, 1136, 1180, 1214, 1244, 1270]

cp's OEIS Frontend

A024328 a(n) = Sum_{j=1..floor((n+1)/2)} A023531(j)*prime(n-j+1).

Table of values

List of values