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A217358 as a simple table

na(n)
11
20
31
41
53
67
716
845
9110
10308
11819
122275
136328
1417748
1550388
16143412
17411939
181187329
193441559
2010015005
2129255655
2285766655
23252201690
24743819115
252199446652
266519727800
2719369551936
2857665571072
29172011364452
30514021640564
311538650042952

[1,0,1,1,3,7,16,45,110,308,819,2275,6328,17748,
 50388,143412,411939,1187329,3441559,10015005,
 29255655,85766655,252201690,743819115,2199446652,
 6519727800,19369551936,57665571072,172011364452,
 514021640564,1538650042952]