A247829 - cp's OEIS frontend

A247829 a(3k) = k(k+1), a(3k+1) = (2k-1)(2k+1), a(3k+2) = (2k-1)(2k+3).

n	a(n)
0	0
1	-1
2	-3
3	2
4	3
5	5
6	6
7	15
8	21
9	12
10	35
11	45
12	20
13	63
14	77
15	30
16	99
17	117
18	42
19	143
20	165
21	56
22	195
23	221
24	72
25	255
26	285
27	90
28	323
29	357
30	110
31	399
32	437
33	132
34	483
35	525
36	156
37	575
38	621
39	182
40	675
41	725
42	210
43	783
44	837
45	240
46	899
47	957
48	272
49	1023
50	1085
51	306
52	1155
53	1221
54	342
55	1295

[0, -1, -3, 2, 3, 5, 6, 15, 21, 12, 35, 45, 20, 63, 77, 30, 99, 117, 42, 143, 165, 56, 195, 221, 72, 255, 285, 90, 323, 357, 110, 399, 437, 132, 483, 525, 156, 575, 621, 182, 675, 725, 210, 783, 837, 240, 899, 957, 272, 1023, 1085, 306, 1155, 1221, 342, 1295]

cp's OEIS Frontend

A247829 a(3k) = k(k+1), a(3k+1) = (2k-1)(2k+1), a(3k+2) = (2k-1)(2k+3).

Table of values

List of values

cp's OEIS Frontend

A247829 a(3*k) = k*(k+1), a(3*k+1) = (2*k-1)*(2*k+1), a(3*k+2) = (2*k-1)*(2*k+3).

Table of values

List of values

A247829 a(3k) = k(k+1), a(3k+1) = (2k-1)(2k+1), a(3k+2) = (2k-1)(2k+3).