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A342286 as a simple table

na(n)
02
10
22
38
4210
564384
64294577650
718446744043646148328
8340282366920938463315800654962347229922
9115792089237316195423570985008687907850207443363352117868951295327319990568640

[2,0,2,8,210,64384,4294577650,
 18446744043646148328,
 340282366920938463315800654962347229922,
 11579208923731619542357098500868790785020744336335\
 2117868951295327319990568640]