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A221449 as a simple table

na(n)
11
2105
31473
418393
5260557
63669101
751186449
8715191073
99997750841
10139736151537
111953034926537
1227297122633073
13381525299372673
145332483219348113
1574530789226270781
161041698296419651789

[1,105,1473,18393,260557,3669101,51186449,
 715191073,9997750841,139736151537,1953034926537,
 27297122633073,381525299372673,5332483219348113,
 74530789226270781,1041698296419651789]