A253284 - cp's OEIS frontend

A253284 Triangle read by rows, T(n,k) = (k+1)(n+1)!(n+k)!/((k+1)!^2*(n-k)!) with n >= 0 and 0 <= k <= n.

n	a(n)
0	1
1	2
2	2
3	6
4	18
5	12
6	24
7	144
8	240
9	120
10	120
11	1200
12	3600
13	4200
14	1680
15	720
16	10800
17	50400
18	100800
19	90720
20	30240
21	5040
22	105840
23	705600
24	2116800
25	3175200
26	2328480
27	665280
28	40320
29	1128960
30	10160640
31	42336000
32	93139200
33	111767040
34	69189120
35	17297280

[1, 2, 2, 6, 18, 12, 24, 144, 240, 120, 120, 1200, 3600, 4200, 1680, 720, 10800, 50400, 100800, 90720, 30240, 5040, 105840, 705600, 2116800, 3175200, 2328480, 665280, 40320, 1128960, 10160640, 42336000, 93139200, 111767040, 69189120, 17297280]

cp's OEIS Frontend

A253284 Triangle read by rows, T(n,k) = (k+1)(n+1)!(n+k)!/((k+1)!^2*(n-k)!) with n >= 0 and 0 <= k <= n.

Table of values

List of values

cp's OEIS Frontend

A253284 Triangle read by rows, T(n,k) = (k+1)*(n+1)!*(n+k)!/((k+1)!^2*(n-k)!) with n >= 0 and 0 <= k <= n.

Table of values

List of values

A253284 Triangle read by rows, T(n,k) = (k+1)(n+1)!(n+k)!/((k+1)!^2*(n-k)!) with n >= 0 and 0 <= k <= n.