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A223511 as a simple table

na(n)
11
29
31
4153
527
61
73825
8855
954
101
11126225
1232895
132745
1490
151
165175225
171507815
18150930
196705
20135
211
22253586025
2380565975
249205245
25499590
2613860
27189
281
2914454403425
304926412575
31623675430
3239180645
331345050
3425578
35252
361

[1,9,1,153,27,1,3825,855,54,1,126225,32895,2745,
 90,1,5175225,1507815,150930,6705,135,1,253586025,
 80565975,9205245,499590,13860,189,1,14454403425,
 4926412575,623675430,39180645,1345050,25578,252,1]