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A268490 as a simple table

na(n)
120
223
315
426
55
618
715
83
915
1013
1113
121
1320
1423
1515
1620
178
1818
195
205
213
2215
2313
2413
251
2615
2714
285
296
309
3122
325
333
3415
3513
3613
371
3820
3923
4015
4119
429
4324
443
4515
4613
4713
481
496
509
5122
525
533
5415
5513
5613
571
5815
5914
605
615
629
637
648
6520
663
6715
6813
6913
701
7115
7214
735
746
759
7622
775
783
7915
8013
8113
821
8320
848
8518
865
875
883
8915
9013
9113
921
9315
9414
955
966
979
9822
995
1003
10115
10213
10313
1041
10515
10614
1075
10820
1098

[20,23,15,26,5,18,15,3,15,13,13,1,20,23,15,20,8,
 18,5,5,3,15,13,13,1,15,14,5,6,9,22,5,3,15,13,13,1,
 20,23,15,19,9,24,3,15,13,13,1,6,9,22,5,3,15,13,13,
 1,15,14,5,5,9,7,8,20,3,15,13,13,1,15,14,5,6,9,22,
 5,3,15,13,13,1,20,8,18,5,5,3,15,13,13,1,15,14,5,6,
 9,22,5,3,15,13,13,1,15,14,5,20,8]