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A257244 as a simple table

na(n)
12
22
33
43
53
63
73
83
93
103
115
125
135
143
153
163
173
183
195
205
217
227
237
247
257
263
273
283
2919
307
317
323
335
345
355
363
377
385
395
405
4119
4211
4311
443
4513
4613
4713
483
4923
5013
5113
525
5311
5411
5511
563
5761
587
5931
603
6113
6213
6319
643
6543
6613
6713
683
697
705
715
725
7361
7411
7531
7623
7723
783
79127
807
817
823
83151
847
8519
863
87181
887
8913
903
9143
9231
9331

[2,2,3,3,3,3,3,3,3,3,5,5,5,3,3,3,3,3,5,5,7,7,7,7,
 7,3,3,3,19,7,7,3,5,5,5,3,7,5,5,5,19,11,11,3,13,13,
 13,3,23,13,13,5,11,11,11,3,61,7,31,3,13,13,19,3,
 43,13,13,3,7,5,5,5,61,11,31,23,23,3,127,7,7,3,151,
 7,19,3,181,7,13,3,43,31,31]