A360857 - cp's OEIS frontend

A360857 Triangle read by rows. T(n, k) = binomial(n, ceil(k/2)) * binomial(n + 1, floor(k/2)).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	6
6	1
7	3
8	12
9	12
10	1
11	4
12	20
13	30
14	60
15	1
16	5
17	30
18	60
19	150
20	150
21	1
22	6
23	42
24	105
25	315
26	420
27	700
28	1
29	7
30	56
31	168
32	588
33	980
34	1960
35	1960
36	1
37	8
38	72
39	252
40	1008
41	2016
42	4704
43	5880
44	8820
45	1
46	9
47	90
48	360
49	1620
50	3780
51	10080
52	15120
53	26460
54	26460

[1, 1, 1, 1, 2, 6, 1, 3, 12, 12, 1, 4, 20, 30, 60, 1, 5, 30, 60, 150, 150, 1, 6, 42, 105, 315, 420, 700, 1, 7, 56, 168, 588, 980, 1960, 1960, 1, 8, 72, 252, 1008, 2016, 4704, 5880, 8820, 1, 9, 90, 360, 1620, 3780, 10080, 15120, 26460, 26460]

cp's OEIS Frontend

A360857 Triangle read by rows. T(n, k) = binomial(n, ceil(k/2)) * binomial(n + 1, floor(k/2)).

Table of values

List of values