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A076194 as a simple table

na(n)
13
27
317
419
531
643
751
8163
9215
10269
11297
12457
13599
14633
15795
16999
171027
181261
192567
2014315
2139505
2244725

[3,7,17,19,31,43,51,163,215,269,297,457,599,633,
 795,999,1027,1261,2567,14315,39505,44725]