A032438 - cp's OEIS frontend

A032438 a(n) = n^2 - floor((n+1)/2)^2.

n	a(n)
0	0
1	0
2	3
3	5
4	12
5	16
6	27
7	33
8	48
9	56
10	75
11	85
12	108
13	120
14	147
15	161
16	192
17	208
18	243
19	261
20	300
21	320
22	363
23	385
24	432
25	456
26	507
27	533
28	588
29	616
30	675
31	705
32	768
33	800
34	867
35	901
36	972
37	1008
38	1083
39	1121
40	1200
41	1240
42	1323
43	1365
44	1452
45	1496
46	1587
47	1633
48	1728
49	1776
50	1875
51	1925

[0, 0, 3, 5, 12, 16, 27, 33, 48, 56, 75, 85, 108, 120, 147, 161, 192, 208, 243, 261, 300, 320, 363, 385, 432, 456, 507, 533, 588, 616, 675, 705, 768, 800, 867, 901, 972, 1008, 1083, 1121, 1200, 1240, 1323, 1365, 1452, 1496, 1587, 1633, 1728, 1776, 1875, 1925]

cp's OEIS Frontend

A032438 a(n) = n^2 - floor((n+1)/2)^2.

Table of values

List of values