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A338072 as a simple table

na(n)
12
23
31
41
57
64
71
83
91
101
117
121
136
143
152
163
177
189
191
209
217
222
234
241
252
269
273
287
295
309
311
329
333
342
352
367
372
382
399
402
413
429
434
443
459
469
472
489
493
503
517
522
535
547
551
564
574
587
595
600
619
621
639
642
659
663
671
687
692
703
711
726
731
749
759
763
777
781
797
809
813
826
837
842
855
861
871
880
896
903
914
922
934
941

[2,3,1,1,7,4,1,3,1,1,7,1,6,3,2,3,7,9,1,9,7,2,4,1,
 2,9,3,7,5,9,1,9,3,2,2,7,2,2,9,2,3,9,4,3,9,9,2,9,3,
 3,7,2,5,7,1,4,4,7,5,0,9,1,9,2,9,3,1,7,2,3,1,6,1,9,
 9,3,7,1,7,9,3,6,7,2,5,1,1,0,6,3,4,2,4,1]