A091594 - cp's OEIS frontend

A091594 Triangle read by rows: T(n,m) := Sum_{k=0..floor((n-m)/2)} binomial(n-2k,m) * binomial(n-m-k,k).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	3
7	4
8	3
9	1
10	5
11	8
12	7
13	4
14	1
15	8
16	15
17	16
18	11
19	5
20	1
21	13
22	28
23	34
24	28
25	16
26	6
27	1
28	21
29	51
30	70
31	66
32	45
33	22
34	7
35	1
36	34
37	92
38	140
39	148
40	116
41	68
42	29
43	8
44	1
45	55
46	164
47	274
48	320
49	281
50	190
51	98
52	37
53	9
54	1
55	89
56	290
57	527
58	672
59	651
60	494
61	295
62	136
63	46
64	10
65	1
66	144
67	509
68	999
69	1379
70	1456
71	1219
72	819
73	439
74	183
75	56
76	11
77	1

[1, 1, 1, 2, 2, 1, 3, 4, 3, 1, 5, 8, 7, 4, 1, 8, 15, 16, 11, 5, 1, 13, 28, 34, 28, 16, 6, 1, 21, 51, 70, 66, 45, 22, 7, 1, 34, 92, 140, 148, 116, 68, 29, 8, 1, 55, 164, 274, 320, 281, 190, 98, 37, 9, 1, 89, 290, 527, 672, 651, 494, 295, 136, 46, 10, 1, 144, 509, 999, 1379, 1456, 1219, 819, 439, 183, 56, 11, 1]

cp's OEIS Frontend

A091594 Triangle read by rows: T(n,m) := Sum_{k=0..floor((n-m)/2)} binomial(n-2k,m) * binomial(n-m-k,k).

Table of values

List of values