A143689 - cp's OEIS frontend

A143689 a(n) = (3*n^2 - n + 2)/2.

n	a(n)
0	1
1	2
2	6
3	13
4	23
5	36
6	52
7	71
8	93
9	118
10	146
11	177
12	211
13	248
14	288
15	331
16	377
17	426
18	478
19	533
20	591
21	652
22	716
23	783
24	853
25	926
26	1002
27	1081
28	1163
29	1248
30	1336
31	1427
32	1521
33	1618
34	1718
35	1821
36	1927
37	2036
38	2148
39	2263
40	2381
41	2502
42	2626
43	2753
44	2883
45	3016
46	3152
47	3291

[1, 2, 6, 13, 23, 36, 52, 71, 93, 118, 146, 177, 211, 248, 288, 331, 377, 426, 478, 533, 591, 652, 716, 783, 853, 926, 1002, 1081, 1163, 1248, 1336, 1427, 1521, 1618, 1718, 1821, 1927, 2036, 2148, 2263, 2381, 2502, 2626, 2753, 2883, 3016, 3152, 3291]

cp's OEIS Frontend

A143689 a(n) = (3*n^2 - n + 2)/2.

Table of values

List of values