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A236921 as a simple table

na(n)
00
10
21
32
410
532
6232
7992
810096
953408
10727360
114569536
1279501696
13578101376
1412337163008
15101945840384
162582987522560
1723913303638528
18701604503968768
197194776722623488
20239847438803052544
212698941227297687552
22100744097104231198720
231234263151585971974144
2450993324690816940089344

[0,0,1,2,10,32,232,992,10096,53408,727360,4569536,
 79501696,578101376,12337163008,101945840384,
 2582987522560,23913303638528,701604503968768,
 7194776722623488,239847438803052544,
 2698941227297687552,100744097104231198720,
 1234263151585971974144,50993324690816940089344]