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A156564 as a simple table

na(n)
01
11
21
31
41
52
61
72
83
96
101
113
1240
1335
1424
151
164
17165
188372
191755
20120
211
225
23456
24159831
2517174080
26382075
27720
281
296
301015
311387064
322572040925
33329455658840
34354205467
355040
361
377
381968
397773755
40107605514016
41670559078523807
4257782732285824000
431368556206875
4440320

[1,1,1,1,1,2,1,2,3,6,1,3,40,35,24,1,4,165,8372,
 1755,120,1,5,456,159831,17174080,382075,720,1,6,
 1015,1387064,2572040925,329455658840,354205467,
 5040,1,7,1968,7773755,107605514016,
 670559078523807,57782732285824000,1368556206875,
 40320]