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A275553 as a simple table

na(n)
01
11
22
34
424
5169
62024
729584
8525600
910764961
10250030128
116484436676
12185752964096
135824523694025
14198428723433728
157298231591777344
16288230377359679488
1712165297972404595841
18546477889989773968640
1926031837574639154232100
201310720000002816000131072

[1,1,2,4,24,169,2024,29584,525600,10764961,
 250030128,6484436676,185752964096,5824523694025,
 198428723433728,7298231591777344,
 288230377359679488,12165297972404595841,
 546477889989773968640,26031837574639154232100,
 1310720000002816000131072]