A199144 - OEIS

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A199144 as a simple table

n	a(n)
1	1
2	13
3	132
4	2453
5	42420
6	794416
7	14511531
8	268456338
9	4940928443
10	91146218920
11	1679743067872
12	30969409565822
13	570877041856787
14	10524153072061784
15	194006638767664141
16	3576453618832667684
17	65930406443303698229

[1,13,132,2453,42420,794416,14511531,268456338, 4940928443,91146218920,1679743067872, 30969409565822,570877041856787,10524153072061784, 194006638767664141,3576453618832667684, 65930406443303698229]