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A078856 as a simple table

na(n)
173
2157
3373
4433
51543
62341
72383
83313
93607
104441
114993
125851
136037
146961
157237
168731
179613
189733
1910723
2013093
2114143
2214731
2316411
2416921
2517971
2618787
2720107
2821391
2923011
3023593
3125111
3225237
3325447
3427793
3530103
3630697
3732353
3832563

[73,157,373,433,1543,2341,2383,3313,3607,4441,
 4993,5851,6037,6961,7237,8731,9613,9733,10723,
 13093,14143,14731,16411,16921,17971,18787,20107,
 21391,23011,23593,25111,25237,25447,27793,30103,
 30697,32353,32563]