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A371018 as a simple table

na(n)
01
10
22
36
460
5620
67950
7129402
82365496
950512968
101208642490
1132223422990
12947694971652
1330435132773916
141061061668979494
1539889366397571810
161608910488000292080
1769305890226183224592
183175519952912430375666
19154216789672147809137046

[1,0,2,6,60,620,7950,129402,2365496,50512968,
 1208642490,32223422990,947694971652,
 30435132773916,1061061668979494,39889366397571810,
 1608910488000292080,69305890226183224592,
 3175519952912430375666,154216789672147809137046]