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A123348 as a simple table

na(n)
00
13
212
354
4240
51068
64752
721144
894080
9418608
101862592
118287584
1236875520
13164077248
14730060032
153248394624
1614453698560
1764311583488
18286153731072
191273238091264
205665259827200
2125207515491328
22112160581619712
23499057357461504
242220550593085440
259880317087264768
2643962369535229952

[0,3,12,54,240,1068,4752,21144,94080,418608,
 1862592,8287584,36875520,164077248,730060032,
 3248394624,14453698560,64311583488,286153731072,
 1273238091264,5665259827200,25207515491328,
 112160581619712,499057357461504,2220550593085440,
 9880317087264768,43962369535229952]