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A033311 as a simple table

na(n)
11
22
34
45
56
618
736
872
989
101557
113728
124730
1327642
1460322
1590720
16104378
17107183
18241453
19453796
20679114
21901262
22934243
231298092
245996127
257360332
2676543031
27299039550
28382621530

[1,2,4,5,6,18,36,72,89,1557,3728,4730,27642,60322,
 90720,104378,107183,241453,453796,679114,901262,
 934243,1298092,5996127,7360332,76543031,299039550,
 382621530]