A022266 - cp's OEIS frontend

A022266 a(n) = n(9n - 1)/2.

n	a(n)
0	0
1	4
2	17
3	39
4	70
5	110
6	159
7	217
8	284
9	360
10	445
11	539
12	642
13	754
14	875
15	1005
16	1144
17	1292
18	1449
19	1615
20	1790
21	1974
22	2167
23	2369
24	2580
25	2800
26	3029
27	3267
28	3514
29	3770
30	4035
31	4309
32	4592
33	4884
34	5185
35	5495
36	5814
37	6142
38	6479
39	6825
40	7180
41	7544
42	7917
43	8299
44	8690
45	9090
46	9499

[0, 4, 17, 39, 70, 110, 159, 217, 284, 360, 445, 539, 642, 754, 875, 1005, 1144, 1292, 1449, 1615, 1790, 1974, 2167, 2369, 2580, 2800, 3029, 3267, 3514, 3770, 4035, 4309, 4592, 4884, 5185, 5495, 5814, 6142, 6479, 6825, 7180, 7544, 7917, 8299, 8690, 9090, 9499]

cp's OEIS Frontend

A022266 a(n) = n(9n - 1)/2.

Table of values

List of values

cp's OEIS Frontend

A022266 a(n) = n*(9*n - 1)/2.

Table of values

List of values

A022266 a(n) = n(9n - 1)/2.