A174474 - cp's OEIS frontend

A174474 a(n) = (2n^2 - 2n - 3)/8 + 3(-1)^n(1-2*n)/8.

n	a(n)
0	0
1	0
2	-1
3	3
4	0
5	8
6	3
7	15
8	8
9	24
10	15
11	35
12	24
13	48
14	35
15	63
16	48
17	80
18	63
19	99
20	80
21	120
22	99
23	143
24	120
25	168
26	143
27	195
28	168
29	224
30	195
31	255
32	224
33	288
34	255
35	323
36	288
37	360
38	323
39	399
40	360
41	440
42	399
43	483
44	440
45	528
46	483
47	575
48	528
49	624
50	575

[0, 0, -1, 3, 0, 8, 3, 15, 8, 24, 15, 35, 24, 48, 35, 63, 48, 80, 63, 99, 80, 120, 99, 143, 120, 168, 143, 195, 168, 224, 195, 255, 224, 288, 255, 323, 288, 360, 323, 399, 360, 440, 399, 483, 440, 528, 483, 575, 528, 624, 575]

cp's OEIS Frontend

A174474 a(n) = (2n^2 - 2n - 3)/8 + 3(-1)^n(1-2*n)/8.

Table of values

List of values

n	a(n)
0	0
1	0
2	-1
3	3
4	0
5	8
6	3
7	15
8	8
9	24
10	15
11	35
12	24
13	48
14	35
15	63
16	48
17	80
18	63
19	99
20	80
21	120
22	99
23	143
24	120
25	168
26	143
27	195
28	168
29	224
30	195
31	255
32	224
33	288
34	255
35	323
36	288
37	360
38	323
39	399
40	360
41	440
42	399
43	483
44	440
45	528
46	483
47	575
48	528
49	624
50	575

n	a(n)
0	0
1	0
2	-1
3	3
4	0
5	8
6	3
7	15
8	8
9	24
10	15
11	35
12	24
13	48
14	35
15	63
16	48
17	80
18	63
19	99
20	80
21	120
22	99
23	143
24	120
25	168
26	143
27	195
28	168
29	224
30	195
31	255
32	224
33	288
34	255
35	323
36	288
37	360
38	323
39	399
40	360
41	440
42	399
43	483
44	440
45	528
46	483
47	575
48	528
49	624
50	575

cp's OEIS Frontend

A174474 a(n) = (2*n^2 - 2*n - 3)/8 + 3*(-1)^n*(1-2*n)/8.

Table of values

List of values

A174474 a(n) = (2n^2 - 2n - 3)/8 + 3(-1)^n(1-2*n)/8.

n	a(n)
0	0
1	0
2	-1
3	3
4	0
5	8
6	3
7	15
8	8
9	24
10	15
11	35
12	24
13	48
14	35
15	63
16	48
17	80
18	63
19	99
20	80
21	120
22	99
23	143
24	120
25	168
26	143
27	195
28	168
29	224
30	195
31	255
32	224
33	288
34	255
35	323
36	288
37	360
38	323
39	399
40	360
41	440
42	399
43	483
44	440
45	528
46	483
47	575
48	528
49	624
50	575