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A240280 as a simple table

na(n)
12
219
380
4262
51461
65443
724490
8117962
9459193
102147788
119481211
1239404594
13181740410
14780110007
153374455576
1615188622683
1765126163196
18286616870440
191266986470030
205476212217332
2124183642014347
22105926526183355

[2,19,80,262,1461,5443,24490,117962,459193,
 2147788,9481211,39404594,181740410,780110007,
 3374455576,15188622683,65126163196,286616870440,
 1266986470030,5476212217332,24183642014347,
 105926526183355]