A241505 - cp's OEIS frontend

A241505 Composite integers k satisfying F_k-(k/5) == 0 (mod k), where F_k is the k-th Fibonacci number and (k/5) is the Kronecker symbol.

n	a(n)
1	25
2	60
3	120
4	125
5	180
6	240
7	300
8	323
9	360
10	377
11	480
12	540
13	600
14	625
15	660
16	720
17	840
18	900
19	960
20	1080
21	1200
22	1320
23	1440
24	1500
25	1620
26	1680
27	1800
28	1860
29	1891
30	1920
31	1980
32	2160
33	2400
34	2460
35	2520
36	2640
37	2700
38	2760
39	2880
40	3000
41	3060
42	3125
43	3240
44	3300
45	3360
46	3420

[25, 60, 120, 125, 180, 240, 300, 323, 360, 377, 480, 540, 600, 625, 660, 720, 840, 900, 960, 1080, 1200, 1320, 1440, 1500, 1620, 1680, 1800, 1860, 1891, 1920, 1980, 2160, 2400, 2460, 2520, 2640, 2700, 2760, 2880, 3000, 3060, 3125, 3240, 3300, 3360, 3420]

cp's OEIS Frontend

A241505 Composite integers k satisfying F_k-(k/5) == 0 (mod k), where F_k is the k-th Fibonacci number and (k/5) is the Kronecker symbol.

Table of values

List of values