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A221206 as a simple table

na(n)
12
25
312
433
593
6269
7788
82330
96947
1020840
1162834
12190240
13577990
141761279
155380796
1616475256
1750543777
18155330201
19478096270
201473591670
214547602623
2214050145290
2343453847676
24134519899690
25416794664987
261292425391245
274010608533780
2812454122695249

[2,5,12,33,93,269,788,2330,6947,20840,62834,
 190240,577990,1761279,5380796,16475256,50543777,
 155330201,478096270,1473591670,4547602623,
 14050145290,43453847676,134519899690,416794664987,
 1292425391245,4010608533780,12454122695249]