A166799 - OEIS

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A166799 as a simple table

n	a(n)
1	0
2	0
3	90
4	1552
5	9902
6	41152
7	133181
8	364793
9	885880
10	1963116
11	4046800
12	7865858
13	14559622
14	25856844
15	44314491
16	73631219
17	119053056
18	187891752
19	290179494

[0,0,90,1552,9902,41152,133181,364793,885880, 1963116,4046800,7865858,14559622,25856844, 44314491,73631219,119053056,187891752,290179494]