A107729 - cp's OEIS frontend

A107729 Triangle T(n,k), 0 <= k <= n, read by rows, defined by T(0,0) = 1; T(0,k) = 0 if k < 0 or if k > 0; T(n,k) = kT(n-1,k-1) + (k+2)T(n-1,k+1).

n	a(n)
0	1
1	0
2	1
3	2
4	0
5	2
6	0
7	8
8	0
9	6
10	16
11	0
12	40
13	0
14	24
15	0
16	136
17	0
18	240
19	0
20	120
21	272
22	0
23	1232
24	0
25	1680
26	0
27	720
28	0
29	3968
30	0
31	12096
32	0
33	13440
34	0
35	5040
36	7936
37	0
38	56320
39	0
40	129024
41	0
42	120960
43	0
44	40320
45	0
46	176896
47	0
48	814080
49	0
50	1491840
51	0
52	1209600
53	0
54	362880
55	353792
56	0

[1, 0, 1, 2, 0, 2, 0, 8, 0, 6, 16, 0, 40, 0, 24, 0, 136, 0, 240, 0, 120, 272, 0, 1232, 0, 1680, 0, 720, 0, 3968, 0, 12096, 0, 13440, 0, 5040, 7936, 0, 56320, 0, 129024, 0, 120960, 0, 40320, 0, 176896, 0, 814080, 0, 1491840, 0, 1209600, 0, 362880, 353792, 0]

cp's OEIS Frontend

A107729 Triangle T(n,k), 0 <= k <= n, read by rows, defined by T(0,0) = 1; T(0,k) = 0 if k < 0 or if k > 0; T(n,k) = kT(n-1,k-1) + (k+2)T(n-1,k+1).

Table of values

List of values

cp's OEIS Frontend

A107729 Triangle T(n,k), 0 <= k <= n, read by rows, defined by T(0,0) = 1; T(0,k) = 0 if k < 0 or if k > 0; T(n,k) = k*T(n-1,k-1) + (k+2)*T(n-1,k+1).

Table of values

List of values

A107729 Triangle T(n,k), 0 <= k <= n, read by rows, defined by T(0,0) = 1; T(0,k) = 0 if k < 0 or if k > 0; T(n,k) = kT(n-1,k-1) + (k+2)T(n-1,k+1).