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A054105 as a simple table

na(n)
34
411
536
6148
7758
84640
933018
10267716
112436218
1224587064
13272556602
143292267868
1543042354506
16605561401328
179122604404714
18146517362114292
192499223145799098

[4,11,36,148,758,4640,33018,267716,2436218,
 24587064,272556602,3292267868,43042354506,
 605561401328,9122604404714,146517362114292,
 2499223145799098]