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A054449 as a simple table

na(n)
01
14
214
346
4144
5436
61287
73724
810603
929788
1082748
11227658
12621122
131682252
144526845
1512111512
1632237253
1785407188
18225318042
19592141478
201550688932
214047787844
2210534503523
2327340763556
2470777265551
25182785072876

[1,4,14,46,144,436,1287,3724,10603,29788,82748,
 227658,621122,1682252,4526845,12111512,32237253,
 85407188,225318042,592141478,1550688932,
 4047787844,10534503523,27340763556,70777265551,
 182785072876]