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A350092 as a simple table

na(n)
01
12
24
39
420
542
690
7191
8405
9857
101816
113848
128150
1317263
1436564
1577445
16164031
17347423
18735855
191558567
203301098
216991839
2214808952
2331365865
2466433969
25140709405
26298027302
27631231956
281336970739
292831749467
305997741619
3112703420605
3226906276616

[1,2,4,9,20,42,90,191,405,857,1816,3848,8150,
 17263,36564,77445,164031,347423,735855,1558567,
 3301098,6991839,14808952,31365865,66433969,
 140709405,298027302,631231956,1336970739,
 2831749467,5997741619,12703420605,26906276616]