A345100 - cp's OEIS frontend

A345100 a(n) = Sum_{k=1..n} k^floor(n/k).

n	a(n)
1	1
2	3
3	6
4	12
5	17
6	33
7	40
8	68
9	95
10	141
11	152
12	328
13	341
14	461
15	738
16	1130
17	1147
18	2159
19	2178
20	4068
21	5841
22	6997
23	7020
24	18198
25	20723
26	25001
27	38798
28	61546
29	61575
30	137445
31	137476
32	223252
33	342593
34	408435
35	485376
36	1213988
37	1214025
38	1476549
39	2541498
40	4202810
41	4202851
42	8777205

[1, 3, 6, 12, 17, 33, 40, 68, 95, 141, 152, 328, 341, 461, 738, 1130, 1147, 2159, 2178, 4068, 5841, 6997, 7020, 18198, 20723, 25001, 38798, 61546, 61575, 137445, 137476, 223252, 342593, 408435, 485376, 1213988, 1214025, 1476549, 2541498, 4202810, 4202851, 8777205]

cp's OEIS Frontend

A345100 a(n) = Sum_{k=1..n} k^floor(n/k).

Table of values

List of values