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A055901 as a simple table

na(n)
51
611
776
8376
91496
105032
1114872
1239572
1396607
14219373
15468440
16948640
171834560
183407040
196104736
2010594728
2117868213
2229367063
2347149828
2474105240
25114224968
26172946488
27257581688
28377845468
29546504595
30780165113

[1,11,76,376,1496,5032,14872,39572,96607,219373,
 468440,948640,1834560,3407040,6104736,10594728,
 17868213,29367063,47149828,74105240,114224968,
 172946488,257581688,377845468,546504595,780165113]