A160791 - cp's OEIS frontend

A160791 a(n) = binomial(N, n - N) where N = 1 + floor(n/2).

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	6
7	4
8	10
9	5
10	15
11	6
12	21
13	7
14	28
15	8
16	36
17	9
18	45
19	10
20	55
21	11
22	66
23	12
24	78
25	13
26	91
27	14
28	105
29	15
30	120
31	16
32	136
33	17
34	153
35	18
36	171
37	19
38	190
39	20
40	210
41	21
42	231
43	22
44	253
45	23
46	276
47	24
48	300
49	25
50	325
51	26
52	351
53	27
54	378
55	28
56	406
57	29
58	435
59	30
60	465

[0, 1, 1, 2, 3, 3, 6, 4, 10, 5, 15, 6, 21, 7, 28, 8, 36, 9, 45, 10, 55, 11, 66, 12, 78, 13, 91, 14, 105, 15, 120, 16, 136, 17, 153, 18, 171, 19, 190, 20, 210, 21, 231, 22, 253, 23, 276, 24, 300, 25, 325, 26, 351, 27, 378, 28, 406, 29, 435, 30, 465]

cp's OEIS Frontend

A160791 a(n) = binomial(N, n - N) where N = 1 + floor(n/2).

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	6
7	4
8	10
9	5
10	15
11	6
12	21
13	7
14	28
15	8
16	36
17	9
18	45
19	10
20	55
21	11
22	66
23	12
24	78
25	13
26	91
27	14
28	105
29	15
30	120
31	16
32	136
33	17
34	153
35	18
36	171
37	19
38	190
39	20
40	210
41	21
42	231
43	22
44	253
45	23
46	276
47	24
48	300
49	25
50	325
51	26
52	351
53	27
54	378
55	28
56	406
57	29
58	435
59	30
60	465

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	6
7	4
8	10
9	5
10	15
11	6
12	21
13	7
14	28
15	8
16	36
17	9
18	45
19	10
20	55
21	11
22	66
23	12
24	78
25	13
26	91
27	14
28	105
29	15
30	120
31	16
32	136
33	17
34	153
35	18
36	171
37	19
38	190
39	20
40	210
41	21
42	231
43	22
44	253
45	23
46	276
47	24
48	300
49	25
50	325
51	26
52	351
53	27
54	378
55	28
56	406
57	29
58	435
59	30
60	465

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	6
7	4
8	10
9	5
10	15
11	6
12	21
13	7
14	28
15	8
16	36
17	9
18	45
19	10
20	55
21	11
22	66
23	12
24	78
25	13
26	91
27	14
28	105
29	15
30	120
31	16
32	136
33	17
34	153
35	18
36	171
37	19
38	190
39	20
40	210
41	21
42	231
43	22
44	253
45	23
46	276
47	24
48	300
49	25
50	325
51	26
52	351
53	27
54	378
55	28
56	406
57	29
58	435
59	30
60	465