A253873 - OEIS

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A253873 as a simple table

n	a(n)
1	20480
2	296960
3	3939840
4	52394496
5	677982208
6	8846579968
7	114921882112
8	1496191085824
9	19441717373440
10	252846568955136
11	3286484917438976
12	42729128633556224
13	555429407389911552
14	7220617056896949504

[20480,296960,3939840,52394496,677982208, 8846579968,114921882112,1496191085824, 19441717373440,252846568955136,3286484917438976, 42729128633556224,555429407389911552, 7220617056896949504]