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A281330 as a simple table

na(n)
10
22976
3521848
437854870
52628860468
6166805996158
710160537599967
8600433381268898
934723542072723416
101975325863716030310
11110929557975063540816
126165067026942753179636
13339710976507404522326590

[0,2976,521848,37854870,2628860468,166805996158,
 10160537599967,600433381268898,34723542072723416,
 1975325863716030310,110929557975063540816,
 6165067026942753179636,339710976507404522326590]