A237143 - OEIS

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A237143 as a simple table

n	a(n)
1	256
2	1472
3	8128
4	48672
5	289648
6	1763648
7	10742400
8	65979616
9	405858928
10	2506483648
11	15505832064
12	96161190176
13	597347413104
14	3717660452416
15	23173286559360
16	144674835765600
17	904520172987504
18	5663029113486528

[256,1472,8128,48672,289648,1763648,10742400, 65979616,405858928,2506483648,15505832064, 96161190176,597347413104,3717660452416, 23173286559360,144674835765600,904520172987504, 5663029113486528]