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A202789 as a simple table

na(n)
12
212
350
4188
5724
62820
710960
842544
9165176
10641376
112490416
129669968
1337547296
14145791744
15566092192
162198069056
178534842304
1833139784256
19128677866752
20499640952320
211940046781312
227532972421120
2329249641835776
24113572903188736

[2,12,50,188,724,2820,10960,42544,165176,641376,
 2490416,9669968,37547296,145791744,566092192,
 2198069056,8534842304,33139784256,128677866752,
 499640952320,1940046781312,7532972421120,
 29249641835776,113572903188736]