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A226316 as a simple table

na(n)
01
11
23
312
456
5284
61516
78384
847600
9275808
101624352
119694912
1258510912
13356467392
142189331648
1513540880384
1684265071360
17527232146944
183314742364672
1920930141861888
20132673039491072
21843959152564224
225385800362473472
2334470606645280768
24221213787774230528
251423139139514138624

[1,1,3,12,56,284,1516,8384,47600,275808,1624352,
 9694912,58510912,356467392,2189331648,13540880384,
 84265071360,527232146944,3314742364672,
 20930141861888,132673039491072,843959152564224,
 5385800362473472,34470606645280768,
 221213787774230528,1423139139514138624]