A049792 - cp's OEIS frontend

A049792 a(n) = Sum_{k=1..n} floor(n/floor(n/k)).

n	a(n)
1	1
2	3
3	7
4	11
5	18
6	24
7	34
8	43
9	55
10	66
11	82
12	94
13	113
14	129
15	150
16	167
17	192
18	211
19	239
20	261
21	290
22	315
23	349
24	374
25	410
26	440
27	478
28	509
29	552
30	583
31	629
32	665
33	711
34	750
35	802
36	838
37	893
38	937
39	992
40	1036
41	1097
42	1141
43	1205
44	1255
45	1317
46	1370
47	1440

[1, 3, 7, 11, 18, 24, 34, 43, 55, 66, 82, 94, 113, 129, 150, 167, 192, 211, 239, 261, 290, 315, 349, 374, 410, 440, 478, 509, 552, 583, 629, 665, 711, 750, 802, 838, 893, 937, 992, 1036, 1097, 1141, 1205, 1255, 1317, 1370, 1440]

cp's OEIS Frontend

A049792 a(n) = Sum_{k=1..n} floor(n/floor(n/k)).

Table of values

List of values