A123516 - cp's OEIS frontend

A123516 Triangle read by rows: T(n,k) = (-1)^k * n! * 2^(n-2k) binomial(n,k) * binomial(2*k,k) (0<=k<=n).

n	a(n)
0	1
1	2
2	-1
3	8
4	-8
5	3
6	48
7	-72
8	54
9	-15
10	384
11	-768
12	864
13	-480
14	105
15	3840
16	-9600
17	14400
18	-12000
19	5250
20	-945
21	46080
22	-138240
23	259200
24	-288000
25	189000
26	-68040
27	10395
28	645120
29	-2257920
30	5080320
31	-7056000
32	6174000
33	-3333960
34	1018710
35	-135135
36	10321920
37	-41287680
38	108380160
39	-180633600
40	197568000

[1, 2, -1, 8, -8, 3, 48, -72, 54, -15, 384, -768, 864, -480, 105, 3840, -9600, 14400, -12000, 5250, -945, 46080, -138240, 259200, -288000, 189000, -68040, 10395, 645120, -2257920, 5080320, -7056000, 6174000, -3333960, 1018710, -135135, 10321920, -41287680, 108380160, -180633600, 197568000]

cp's OEIS Frontend

A123516 Triangle read by rows: T(n,k) = (-1)^k * n! * 2^(n-2k) binomial(n,k) * binomial(2*k,k) (0<=k<=n).

Table of values

List of values

cp's OEIS Frontend

A123516 Triangle read by rows: T(n,k) = (-1)^k * n! * 2^(n-2*k) * binomial(n,k) * binomial(2*k,k) (0<=k<=n).

Table of values

List of values

A123516 Triangle read by rows: T(n,k) = (-1)^k * n! * 2^(n-2k) binomial(n,k) * binomial(2*k,k) (0<=k<=n).