A085840 - cp's OEIS frontend

A085840 Triangle read by rows: T(n,m) = 4^m * (2n+1)! / ( (2n - 2m + 1)! (2*m)! ), row n has n+1 terms.

n	a(n)
0	1
1	1
2	12
3	1
4	40
5	80
6	1
7	84
8	560
9	448
10	1
11	144
12	2016
13	5376
14	2304
15	1
16	220
17	5280
18	29568
19	42240
20	11264
21	1
22	312
23	11440
24	109824
25	329472
26	292864
27	53248
28	1
29	420
30	21840
31	320320
32	1647360
33	3075072
34	1863680
35	245760

[1, 1, 12, 1, 40, 80, 1, 84, 560, 448, 1, 144, 2016, 5376, 2304, 1, 220, 5280, 29568, 42240, 11264, 1, 312, 11440, 109824, 329472, 292864, 53248, 1, 420, 21840, 320320, 1647360, 3075072, 1863680, 245760]

cp's OEIS Frontend

A085840 Triangle read by rows: T(n,m) = 4^m * (2n+1)! / ( (2n - 2m + 1)! (2*m)! ), row n has n+1 terms.

Table of values

List of values

cp's OEIS Frontend

A085840 Triangle read by rows: T(n,m) = 4^m * (2*n+1)! / ( (2*n - 2*m + 1)! * (2*m)! ), row n has n+1 terms.

Table of values

List of values

A085840 Triangle read by rows: T(n,m) = 4^m * (2n+1)! / ( (2n - 2m + 1)! (2*m)! ), row n has n+1 terms.