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A174266 as a simple table

na(n)
11
21
39
49
51
61
754
8405
9760
10405
1154
121
131
14243
156750
1649682
17128124
18128124
1949682
206750
21243
221
231
241008
2583736
261722320
2712750255
2840241088
2958571184
3040241088
3112750255
321722320
3383736
341008
351
361
374077
38922347
3945699447
40789300477
415904797049
4221475242671
4340396577931
4440396577931
4521475242671
465904797049
47789300477
4845699447
49922347
504077
511

[1,1,9,9,1,1,54,405,760,405,54,1,1,243,6750,49682,
 128124,128124,49682,6750,243,1,1,1008,83736,
 1722320,12750255,40241088,58571184,40241088,
 12750255,1722320,83736,1008,1,1,4077,922347,
 45699447,789300477,5904797049,21475242671,
 40396577931,40396577931,21475242671,5904797049,
 789300477,45699447,922347,4077,1]