A216876 - cp's OEIS frontend

A216876 20k^2-20k-5 interleaved with 20k^2+5 for k=>0.

n	a(n)
0	-5
1	5
2	-5
3	25
4	35
5	85
6	115
7	185
8	235
9	325
10	395
11	505
12	595
13	725
14	835
15	985
16	1115
17	1285
18	1435
19	1625
20	1795
21	2005
22	2195
23	2425
24	2635
25	2885
26	3115
27	3385
28	3635
29	3925
30	4195
31	4505
32	4795
33	5125
34	5435
35	5785
36	6115
37	6485
38	6835
39	7225
40	7595
41	8005
42	8395
43	8825
44	9235
45	9685

[-5, 5, -5, 25, 35, 85, 115, 185, 235, 325, 395, 505, 595, 725, 835, 985, 1115, 1285, 1435, 1625, 1795, 2005, 2195, 2425, 2635, 2885, 3115, 3385, 3635, 3925, 4195, 4505, 4795, 5125, 5435, 5785, 6115, 6485, 6835, 7225, 7595, 8005, 8395, 8825, 9235, 9685]

cp's OEIS Frontend

A216876 20k^2-20k-5 interleaved with 20k^2+5 for k=>0.

Table of values

List of values