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A345466 as a simple table

na(n)
01
11
22
39
496
51250
664800
71764735
8224788480
922499086176
106123600000000
11408514437465750
121308805762115174400
13133962125607455951520
1499335199198879310098432
15113040832521732593994140625
16425230288403106927476736000000
1772623663171934137824096600064000

[1,1,2,9,96,1250,64800,1764735,224788480,
 22499086176,6123600000000,408514437465750,
 1308805762115174400,133962125607455951520,
 99335199198879310098432,
 113040832521732593994140625,
 425230288403106927476736000000,
 72623663171934137824096600064000]