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A116138 as a simple table

na(n)
00
16
254
3324
41620
57290
630618
7122472
8472392
91771470
106495390
1123383404
1282904796
13290166786
141004423490
153443737680
1611708708112
1739516889878
18132497807238
19441659357460
201464449448420
214832683179786
2215878816162154

[0,6,54,324,1620,7290,30618,122472,472392,1771470,
 6495390,23383404,82904796,290166786,1004423490,
 3443737680,11708708112,39516889878,132497807238,
 441659357460,1464449448420,4832683179786,
 15878816162154]