A333644 - cp's OEIS frontend

A333644 a(n) = Sum_{k=1..n} floor(n/k) * prime(k).

n	a(n)
1	2
2	7
3	14
4	26
5	39
6	62
7	81
8	112
9	142
10	187
11	220
12	287
13	330
14	395
15	460
16	544
17	605
18	712
19	781
20	904
21	1001
22	1116
23	1201
24	1376
25	1486
26	1633
27	1766
28	1945
29	2056
30	2279
31	2408
32	2623
33	2798
34	3001
35	3180
36	3482
37	3641
38	3876
39	4091
40	4406
41	4587
42	4924
43	5117
44	5432
45	5717
46	6004
47	6217
48	6668
49	6914
50	7285

[2, 7, 14, 26, 39, 62, 81, 112, 142, 187, 220, 287, 330, 395, 460, 544, 605, 712, 781, 904, 1001, 1116, 1201, 1376, 1486, 1633, 1766, 1945, 2056, 2279, 2408, 2623, 2798, 3001, 3180, 3482, 3641, 3876, 4091, 4406, 4587, 4924, 5117, 5432, 5717, 6004, 6217, 6668, 6914, 7285]

cp's OEIS Frontend

A333644 a(n) = Sum_{k=1..n} floor(n/k) * prime(k).

Table of values

List of values