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A009737 as a simple table

na(n)
00
11
22
35
420
581
6438
72477
816680
9120481
10973034
118496245
1280252732
13817734321
148859646110
15102873611549
161258403748432
1716372688411713
18223202277906386
193213260867586149
2048295209177888356

[0,1,2,5,20,81,438,2477,16680,120481,973034,
 8496245,80252732,817734321,8859646110,
 102873611549,1258403748432,16372688411713,
 223202277906386,3213260867586149,
 48295209177888356]