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A003148 as a simple table

na(n)
01
11
27
327
4321
52265
637575
7390915
88281665
9114610545
102946939975
1151083368875
121542234996225
1332192256321225
141114841223671175
1527254953356505875
161064057291370698625
1729845288035840902625
181296073464766972266375
1941049997128507054562875

[1,1,7,27,321,2265,37575,390915,8281665,114610545,
 2946939975,51083368875,1542234996225,
 32192256321225,1114841223671175,27254953356505875,
 1064057291370698625,29845288035840902625,
 1296073464766972266375,41049997128507054562875]