A147775 - cp's OEIS frontend

A147775 Numbers of the form (h+k)k, where h/k is a fraction in a Farey sequence, that occur as at least two times in a Farey sequence. 420 (13+15)15=(1+20)20.

n	a(n)
1	420
2	840
3	858
4	1260
5	1326
6	1540
7	1716
8	1938
9	1980
10	2145
11	2310
12	2340
13	2520
14	2622
15	2652
16	2730
17	2850
18	2860
19	2964
20	3080
21	3450
22	3465
23	3740
24	3876
25	3960
26	4002
27	4080
28	4290
29	4350
30	4420
31	4560
32	4620
33	4650
34	4692
35	4845
36	4940
37	5005
38	5100
39	5244
40	5394
41	5460
42	5544

[420, 840, 858, 1260, 1326, 1540, 1716, 1938, 1980, 2145, 2310, 2340, 2520, 2622, 2652, 2730, 2850, 2860, 2964, 3080, 3450, 3465, 3740, 3876, 3960, 4002, 4080, 4290, 4350, 4420, 4560, 4620, 4650, 4692, 4845, 4940, 5005, 5100, 5244, 5394, 5460, 5544]

cp's OEIS Frontend

A147775 Numbers of the form (h+k)k, where h/k is a fraction in a Farey sequence, that occur as at least two times in a Farey sequence. 420 (13+15)15=(1+20)20.

Table of values

List of values

cp's OEIS Frontend

A147775 Numbers of the form (h+k)k, where h/k is a fraction in a Farey sequence, that occur as at least two times in a Farey sequence. 420 (13+15)*15=(1+20)*20.

Table of values

List of values

A147775 Numbers of the form (h+k)k, where h/k is a fraction in a Farey sequence, that occur as at least two times in a Farey sequence. 420 (13+15)15=(1+20)20.