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A097118 as a simple table

na(n)
01
11
21
36
416
531
676
7201
8481
91141
102806
116876
1216651
1340456
1498641
15240081
16583801
171420726
183458056
198414391
2020474356
2149824601
22121246801
23295040781
24717957766
251747108756
264251463651
2710345607376
2825175294881
2961262300641

[1,1,1,6,16,31,76,201,481,1141,2806,6876,16651,
 40456,98641,240081,583801,1420726,3458056,8414391,
 20474356,49824601,121246801,295040781,717957766,
 1747108756,4251463651,10345607376,25175294881,
 61262300641]