A354529 - cp's OEIS frontend

A354529 a(1) = 3, a(2) = 12 and a(n) = (3n^2+8n-2)/2 if n is even or = (3n^2+8n-5)/2, if n is odd, for n >= 3.

n	a(n)
1	3
2	12
3	23
4	39
5	55
6	77
7	99
8	127
9	155
10	189
11	223
12	263
13	303
14	349
15	395
16	447
17	499
18	557
19	615
20	679
21	743
22	813
23	883
24	959
25	1035
26	1117
27	1199
28	1287
29	1375
30	1469
31	1563
32	1663
33	1763
34	1869
35	1975
36	2087
37	2199
38	2317
39	2435
40	2559
41	2683
42	2813
43	2943
44	3079
45	3215
46	3357
47	3499
48	3647
49	3795
50	3949
51	4103
52	4263
53	4423

[3, 12, 23, 39, 55, 77, 99, 127, 155, 189, 223, 263, 303, 349, 395, 447, 499, 557, 615, 679, 743, 813, 883, 959, 1035, 1117, 1199, 1287, 1375, 1469, 1563, 1663, 1763, 1869, 1975, 2087, 2199, 2317, 2435, 2559, 2683, 2813, 2943, 3079, 3215, 3357, 3499, 3647, 3795, 3949, 4103, 4263, 4423]

cp's OEIS Frontend

A354529 a(1) = 3, a(2) = 12 and a(n) = (3n^2+8n-2)/2 if n is even or = (3n^2+8n-5)/2, if n is odd, for n >= 3.

Table of values

List of values