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A033091 as a simple table

na(n)
00
11
22
34
413
540
649
765
8399
92076
1011626
1112156
1212190
1316992
1487983
15717895
162186175
174327480
187928565
198130547
2012139891
2154517279
2267728780
23264656137
24410041022
252970688427
2613126642049
2719585729892
2871713995073

[0,1,2,4,13,40,49,65,399,2076,11626,12156,12190,
 16992,87983,717895,2186175,4327480,7928565,
 8130547,12139891,54517279,67728780,264656137,
 410041022,2970688427,13126642049,19585729892,
 71713995073]