A161694 - OEIS

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A161694 as a simple table

n	a(n)
0	1
1	49
2	1224
3	20775
4	269450
5	2847586
6	25534390
7	199766491
8	1391526550
9	8764839175
10	50530255490
11	269252177545
12	1336765568579
13	6225203548375
14	27347806169775
15	113887933772724
16	451493020193130
17	1710182996663175

[1,49,1224,20775,269450,2847586,25534390, 199766491,1391526550,8764839175,50530255490, 269252177545,1336765568579,6225203548375, 27347806169775,113887933772724,451493020193130, 1710182996663175]