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A202920 as a simple table

na(n)
11
220
3534
411016
5150590
61441046
710457226
861213311
9302092215
101297497783
114965323693
1217234628058
1355015736433
14163298076933
15454724969302
161196643377731
172994141259048
187159760760474
1916433842970073
2036343144995894

[1,20,534,11016,150590,1441046,10457226,61213311,
 302092215,1297497783,4965323693,17234628058,
 55015736433,163298076933,454724969302,
 1196643377731,2994141259048,7159760760474,
 16433842970073,36343144995894]