A223552 - OEIS

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A223552 as a simple table

n	a(n)
1	27
2	1089
3	44217
4	1795473
5	72906921
6	2960456193
7	120212193177
8	4881332621169
9	198211242377097
10	8048559615522273
11	326819564358379641
12	13270825184845208913
13	538874719548919491177
14	21881530298548175795649

[27,1089,44217,1795473,72906921,2960456193, 120212193177,4881332621169,198211242377097, 8048559615522273,326819564358379641, 13270825184845208913,538874719548919491177, 21881530298548175795649]