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A231204 as a simple table

na(n)
00
10
20
31
40
52
61
73
80
93
102
115
121
134
143
156
160
174
183
197
202
216
225
239
241
255
264
278
283
297
306
3110
320
335
344
359
363
378
387
3912
402
417
426
4311
445
4510
469
4714
481
496
505
5110
524
539
548
5513
563
578
587
5912
606
6111
6210
6315
640
656
665
6711
684
6910
709
7115
723
739
748
7514
767
7713
7812
7918
802
818
827
8313
846
8512
8611
8717
885
8911
9010
9116
929
9315
9414
9520
961
977
986
9912

[0,0,0,1,0,2,1,3,0,3,2,5,1,4,3,6,0,4,3,7,2,6,5,9,
 1,5,4,8,3,7,6,10,0,5,4,9,3,8,7,12,2,7,6,11,5,10,9,
 14,1,6,5,10,4,9,8,13,3,8,7,12,6,11,10,15,0,6,5,11,
 4,10,9,15,3,9,8,14,7,13,12,18,2,8,7,13,6,12,11,17,
 5,11,10,16,9,15,14,20,1,7,6,12]