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A123572 as a simple table

na(n)
00
13
25
36
46
58
69
79
810
910
1010
1112
1213
1313
1414
1514
1614
1715
1815
1915
2015
2117
2218
2318
2419
2519
2619
2720
2820
2920
3020
3121
3221
3321
3421
3521
3623
3724
3824
3925
4025
4125
4226
4326
4426
4526
4627
4727
4827
4927
5027
5128
5228
5328
5428
5528
5628
5730
5831
5931
6032
6132
6232
6333
6433
6533
6633
6734
6834
6934
7034
7134

[0,3,5,6,6,8,9,9,10,10,10,12,13,13,14,14,14,15,15,
 15,15,17,18,18,19,19,19,20,20,20,20,21,21,21,21,
 21,23,24,24,25,25,25,26,26,26,26,27,27,27,27,27,
 28,28,28,28,28,28,30,31,31,32,32,32,33,33,33,33,
 34,34,34,34,34]