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A189392 as a simple table

na(n)
00
11
22
314
488
5856
68912
7115184
81644928
926916736
10484527872
119646440704
12208891091968
134908327894016
14124094242629632
153363100573005824
1697195058375262208
172984961531977629696
1897056253813754888192
193331252527903082348544

[0,1,2,14,88,856,8912,115184,1644928,26916736,
 484527872,9646440704,208891091968,4908327894016,
 124094242629632,3363100573005824,
 97195058375262208,2984961531977629696,
 97056253813754888192,3331252527903082348544]