A102385 - OEIS

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A102385 as a simple table

n	a(n)
1	2
2	23
3	61
4	821
5	4201
6	270131
7	61277761
8	274359834731
9	23888027348153
10	86936981079782063
11	4243031147170261950811
12	272838646828154727511151
13	821882010875193363312928672952261

[2,23,61,821,4201,270131,61277761,274359834731, 23888027348153,86936981079782063, 4243031147170261950811,272838646828154727511151, 821882010875193363312928672952261]