A178266 - OEIS

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A178266 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	244
9	2841
10	17844
11	80289
12	290004
13	893607
14	2438436
15	6043911
16	13840224
17	29694274
18	60220488
19	116488506
20	215985456

[0,0,0,0,0,0,0,244,2841,17844,80289,290004,893607, 2438436,6043911,13840224,29694274,60220488, 116488506,215985456]