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A247905 as a simple table

na(n)
01
17
219
343
479
5139
6223
7355
8535
9811
101183
111747
122503
133643
145167
157459
1610519
1715115
1821247
1930451
2042727
2161147
2285711
23122563
24171703
25245419
26343711
27491155
28687751
29982651
301375855
311965667
322752087
333931723
345504575
357863859
3611009575
3715728155
3822019599
3931456771
4044039671
4162914027
4288079839
43125828563
44176160199
45251657659

[1,7,19,43,79,139,223,355,535,811,1183,1747,2503,
 3643,5167,7459,10519,15115,21247,30451,42727,
 61147,85711,122563,171703,245419,343711,491155,
 687751,982651,1375855,1965667,2752087,3931723,
 5504575,7863859,11009575,15728155,22019599,
 31456771,44039671,62914027,88079839,125828563,
 176160199,251657659]