A283685 - OEIS

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A283685 as a simple table

n	a(n)
1	2
2	16
3	264
4	15226
5	2530461
6	1119189256
7	1496646288297
8	5725555721739395
9	62058786307229208212
10	1952915013418224842868823
11	176329484983538571638638096503

[2,16,264,15226,2530461,1119189256,1496646288297, 5725555721739395,62058786307229208212, 1952915013418224842868823, 176329484983538571638638096503]

[2,16,264,15226,2530461,1119189256,1496646288297,
 5725555721739395,62058786307229208212,
 1952915013418224842868823,
 176329484983538571638638096503]