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A227373 as a simple table

na(n)
01
11
22
36
418
559
6199
7693
82465
98937
1032880
11122513
12461331
131753037
146713758
1525888515
16100427611
17391657635
181534674930
196039078032
2023855475724
2194561195899
22376019415794
231499554893338
245996061250461
2524034238674758
2696554979145357
27388711331661818
281567919554600690

[1,1,2,6,18,59,199,693,2465,8937,32880,122513,
 461331,1753037,6713758,25888515,100427611,
 391657635,1534674930,6039078032,23855475724,
 94561195899,376019415794,1499554893338,
 5996061250461,24034238674758,96554979145357,
 388711331661818,1567919554600690]