A282590 - OEIS

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A282590 as a simple table

n	a(n)
1	0
2	52
3	4083
4	73469
5	1551972
6	30003220
7	546521435
8	9746960274
9	169306647351
10	2884275163813
11	48386582600214
12	801016787700078
13	13113480490074974
14	212632915575773769
15	3419108628432132356
16	54577103801965278765

[0,52,4083,73469,1551972,30003220,546521435, 9746960274,169306647351,2884275163813, 48386582600214,801016787700078,13113480490074974, 212632915575773769,3419108628432132356, 54577103801965278765]