A233503 - OEIS

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A233503 as a simple table

n	a(n)
1	166865923720
2	609539583118581
3	2257956973020836034
4	8402516744270059192510
5	31268023473905931187253907
6	116334766873906705110905737848
7	432821541000735919144507449122965
8	1610312691435881566858054135145427150

[166865923720,609539583118581,2257956973020836034, 8402516744270059192510,31268023473905931187253907, 116334766873906705110905737848, 432821541000735919144507449122965, 1610312691435881566858054135145427150]