A319866 - cp's OEIS frontend

A319866 a(n) = 21 + 43 + 65 + 87 + 109 + 1211 + ... + (up to the n-th term).

n	a(n)
1	2
2	2
3	6
4	14
5	20
6	44
7	52
8	100
9	110
10	190
11	202
12	322
13	336
14	504
15	520
16	744
17	762
18	1050
19	1070
20	1430
21	1452
22	1892
23	1916
24	2444
25	2470
26	3094
27	3122
28	3850
29	3880
30	4720
31	4752
32	5712
33	5746
34	6834
35	6870
36	8094
37	8132
38	9500
39	9540
40	11060
41	11102
42	12782
43	12826
44	14674
45	14720
46	16744

[2, 2, 6, 14, 20, 44, 52, 100, 110, 190, 202, 322, 336, 504, 520, 744, 762, 1050, 1070, 1430, 1452, 1892, 1916, 2444, 2470, 3094, 3122, 3850, 3880, 4720, 4752, 5712, 5746, 6834, 6870, 8094, 8132, 9500, 9540, 11060, 11102, 12782, 12826, 14674, 14720, 16744]

cp's OEIS Frontend

A319866 a(n) = 21 + 43 + 65 + 87 + 109 + 1211 + ... + (up to the n-th term).

Table of values

List of values

cp's OEIS Frontend

A319866 a(n) = 2*1 + 4*3 + 6*5 + 8*7 + 10*9 + 12*11 + ... + (up to the n-th term).

Table of values

List of values

A319866 a(n) = 21 + 43 + 65 + 87 + 109 + 1211 + ... + (up to the n-th term).