A177040 - cp's OEIS frontend

A177040 Irregular triangle t(n,m) = binomial(m+1,n-m) read by rows floor((n+1)/2) <= m <= n.

n	a(n)
0	1
1	1
2	2
3	1
4	3
5	1
6	3
7	4
8	1
9	6
10	5
11	1
12	4
13	10
14	6
15	1
16	10
17	15
18	7
19	1
20	5
21	20
22	21
23	8
24	1
25	15
26	35
27	28
28	9
29	1
30	6
31	35
32	56
33	36
34	10
35	1
36	21
37	70
38	84
39	45
40	11
41	1
42	7
43	56
44	126
45	120
46	55
47	12
48	1
49	28
50	126
51	210
52	165
53	66
54	13
55	1
56	8
57	84
58	252
59	330
60	220
61	78
62	14
63	1
64	36
65	210
66	462
67	495
68	286
69	91
70	15
71	1

[1, 1, 2, 1, 3, 1, 3, 4, 1, 6, 5, 1, 4, 10, 6, 1, 10, 15, 7, 1, 5, 20, 21, 8, 1, 15, 35, 28, 9, 1, 6, 35, 56, 36, 10, 1, 21, 70, 84, 45, 11, 1, 7, 56, 126, 120, 55, 12, 1, 28, 126, 210, 165, 66, 13, 1, 8, 84, 252, 330, 220, 78, 14, 1, 36, 210, 462, 495, 286, 91, 15, 1]

cp's OEIS Frontend

A177040 Irregular triangle t(n,m) = binomial(m+1,n-m) read by rows floor((n+1)/2) <= m <= n.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	1
4	3
5	1
6	3
7	4
8	1
9	6
10	5
11	1
12	4
13	10
14	6
15	1
16	10
17	15
18	7
19	1
20	5
21	20
22	21
23	8
24	1
25	15
26	35
27	28
28	9
29	1
30	6
31	35
32	56
33	36
34	10
35	1
36	21
37	70
38	84
39	45
40	11
41	1
42	7
43	56
44	126
45	120
46	55
47	12
48	1
49	28
50	126
51	210
52	165
53	66
54	13
55	1
56	8
57	84
58	252
59	330
60	220
61	78
62	14
63	1
64	36
65	210
66	462
67	495
68	286
69	91
70	15
71	1

n	a(n)
0	1
1	1
2	2
3	1
4	3
5	1
6	3
7	4
8	1
9	6
10	5
11	1
12	4
13	10
14	6
15	1
16	10
17	15
18	7
19	1
20	5
21	20
22	21
23	8
24	1
25	15
26	35
27	28
28	9
29	1
30	6
31	35
32	56
33	36
34	10
35	1
36	21
37	70
38	84
39	45
40	11
41	1
42	7
43	56
44	126
45	120
46	55
47	12
48	1
49	28
50	126
51	210
52	165
53	66
54	13
55	1
56	8
57	84
58	252
59	330
60	220
61	78
62	14
63	1
64	36
65	210
66	462
67	495
68	286
69	91
70	15
71	1

n	a(n)
0	1
1	1
2	2
3	1
4	3
5	1
6	3
7	4
8	1
9	6
10	5
11	1
12	4
13	10
14	6
15	1
16	10
17	15
18	7
19	1
20	5
21	20
22	21
23	8
24	1
25	15
26	35
27	28
28	9
29	1
30	6
31	35
32	56
33	36
34	10
35	1
36	21
37	70
38	84
39	45
40	11
41	1
42	7
43	56
44	126
45	120
46	55
47	12
48	1
49	28
50	126
51	210
52	165
53	66
54	13
55	1
56	8
57	84
58	252
59	330
60	220
61	78
62	14
63	1
64	36
65	210
66	462
67	495
68	286
69	91
70	15
71	1