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A052807 as a simple table

na(n)
00
11
23
317
4146
51704
625284
7456224
89702776
9237711888
106593032560
11204212077992
126986942528400
13261700394006232
1410650713784774504
15468007296229553880
1622083086552247101184
171113646609708909274880

[0,1,3,17,146,1704,25284,456224,9702776,237711888,
 6593032560,204212077992,6986942528400,
 261700394006232,10650713784774504,
 468007296229553880,22083086552247101184,
 1113646609708909274880]