A279911 - cp's OEIS frontend

A279911 a(n) = Sum_{i=1..n} denominator(n^i/i).

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	11
6	10
7	22
8	22
9	31
10	28
11	56
12	36
13	79
14	58
15	72
16	86
17	137
18	80
19	172
20	112
21	145
22	148
23	254
24	146
25	261
26	208
27	274
28	230
29	407
30	182
31	466
32	342
33	375
34	360
35	448
36	322
37	667
38	456
39	528
40	444
41	821
42	384
43	904
44	592
45	635
46	676
47	1082
48	574
49	1051
50	692
51	924
52	836
53	1379
54	732
55	1154
56	912
57	1153

[0, 1, 2, 4, 6, 11, 10, 22, 22, 31, 28, 56, 36, 79, 58, 72, 86, 137, 80, 172, 112, 145, 148, 254, 146, 261, 208, 274, 230, 407, 182, 466, 342, 375, 360, 448, 322, 667, 456, 528, 444, 821, 384, 904, 592, 635, 676, 1082, 574, 1051, 692, 924, 836, 1379, 732, 1154, 912, 1153]

cp's OEIS Frontend

A279911 a(n) = Sum_{i=1..n} denominator(n^i/i).

Table of values

List of values