A153672 - OEIS

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A153672 as a simple table

n	a(n)
1	1
2	69
3	180
4	783
5	859
6	1803
7	10763
8	19105
9	39568
10	50172
11	132572
12	355146
13	1452050
14	2245950
15	3047334
16	3933030
17	4165171
18	98544173

[1,69,180,783,859,1803,10763,19105,39568,50172, 132572,355146,1452050,2245950,3047334,3933030, 4165171,98544173]