A240877 - cp's OEIS frontend

A240877 Sum of the denominators of the Farey series of order n (A006843).

n	a(n)
0	1
1	2
2	4
3	10
4	18
5	38
6	50
7	92
8	124
9	178
10	218
11	328
12	376
13	532
14	616
15	736
16	864
17	1136
18	1244
19	1586
20	1746
21	1998
22	2218
23	2724
24	2916
25	3416
26	3728
27	4214
28	4550
29	5362
30	5602
31	6532
32	7044
33	7704
34	8248
35	9088
36	9520
37	10852
38	11536
39	12472
40	13112
41	14752
42	15256
43	17062
44	17942
45	19022
46	20034
47	22196
48	22964
49	25022
50	26022

[1, 2, 4, 10, 18, 38, 50, 92, 124, 178, 218, 328, 376, 532, 616, 736, 864, 1136, 1244, 1586, 1746, 1998, 2218, 2724, 2916, 3416, 3728, 4214, 4550, 5362, 5602, 6532, 7044, 7704, 8248, 9088, 9520, 10852, 11536, 12472, 13112, 14752, 15256, 17062, 17942, 19022, 20034, 22196, 22964, 25022, 26022]

cp's OEIS Frontend

A240877 Sum of the denominators of the Farey series of order n (A006843).

Table of values

List of values