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A023944 as a simple table

na(n)
01
10
249896
32821632
450332590
5467596800
62900976144
713527005184
851515674056
9166963872768
10479797555248
111241996861952
122970712710438
136601476879360
1413877851716432
1527612993881088
1652754008389390
1796534440589312
18171306687302520
19293591846287872

[1,0,49896,2821632,50332590,467596800,2900976144,
 13527005184,51515674056,166963872768,479797555248,
 1241996861952,2970712710438,6601476879360,
 13877851716432,27612993881088,52754008389390,
 96534440589312,171306687302520,293591846287872]