A188253 - OEIS

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A188253 as a simple table

n	a(n)
1	40
2	1284
3	12692
4	58824
5	193232
6	521124
7	1142180
8	2347608
9	4323448
10	7567844
11	12129300
12	19691552
13	29057776
14	42900188
15	61593740
16	86648240

[40,1284,12692,58824,193232,521124,1142180, 2347608,4323448,7567844,12129300,19691552, 29057776,42900188,61593740,86648240]