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A129063 as a simple table

na(n)
01
16
236
3250
42040
519334
6209580
72562354
834915680
9524986462
108636859924
11154357103498
122978418173640
1361718786864310
141367098836863868
1532236969655283682
16806313056758966320
1721322699350055313678
18594440128269066768612
1917424632249851351374906

[1,6,36,250,2040,19334,209580,2562354,34915680,
 524986462,8636859924,154357103498,2978418173640,
 61718786864310,1367098836863868,32236969655283682,
 806313056758966320,21322699350055313678,
 594440128269066768612,17424632249851351374906]