A119563 - OEIS

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A119563 as a simple table

n	a(n)
0	2
1	5
2	19
3	263
4	65551
5	4294967327
6	18446744073709551679
7	340282366920938463463374607431768211583
8	115792089237316195423570985008687907853269984665640564039457584007913129640191

[2,5,19,263,65551,4294967327,18446744073709551679, 340282366920938463463374607431768211583, 11579208923731619542357098500868790785326998466564\ 0564039457584007913129640191]