A216875 - cp's OEIS frontend

A216875 20k^2-40k+10 interleaved with 20k^2-20k+10 for k>=0.

n	a(n)
0	10
1	10
2	-10
3	10
4	10
5	50
6	70
7	130
8	170
9	250
10	310
11	410
12	490
13	610
14	710
15	850
16	970
17	1130
18	1270
19	1450
20	1610
21	1810
22	1990
23	2210
24	2410
25	2650
26	2870
27	3130
28	3370
29	3650
30	3910
31	4210
32	4490
33	4810
34	5110
35	5450
36	5770
37	6130
38	6470
39	6850
40	7210
41	7610
42	7990
43	8410
44	8810
45	9250
46	9670

[10, 10, -10, 10, 10, 50, 70, 130, 170, 250, 310, 410, 490, 610, 710, 850, 970, 1130, 1270, 1450, 1610, 1810, 1990, 2210, 2410, 2650, 2870, 3130, 3370, 3650, 3910, 4210, 4490, 4810, 5110, 5450, 5770, 6130, 6470, 6850, 7210, 7610, 7990, 8410, 8810, 9250, 9670]

cp's OEIS Frontend

A216875 20k^2-40k+10 interleaved with 20k^2-20k+10 for k>=0.

Table of values

List of values