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A255061 as a simple table

na(n)
10
21
33
46
511
620
736
865
9118
10215
11393
12721
131329
142463
154589
168590
1716142
1830434
1957549
20109114
21207388
22395045
23754027
241441971
252762764
265303466
2710200385
2819656528
2937948281
3073384080
31142115376
32275551755
33534790472
341038702980
352018626772
363924923937
377634733312

[0,1,3,6,11,20,36,65,118,215,393,721,1329,2463,
 4589,8590,16142,30434,57549,109114,207388,395045,
 754027,1441971,2762764,5303466,10200385,19656528,
 37948281,73384080,142115376,275551755,534790472,
 1038702980,2018626772,3924923937,7634733312]