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A279318 as a simple table

na(n)
03
12
21
30
45
54
69
78
87
96
1011
1110
1215
1314
1413
1512
1617
1716
1821
1920
2019
2118
2223
2322
2427
2526
2625
2724
2829
2928
3033
3132
3231
3330
3435
3534
3639
3738
3837
3936
4041
4140
4245
4344
4443
4542
4647
4746
4851
4950
5049
5148
5253
5352
5457
5556
5655
5754
5859
5958
6063
6162
6261
6360
6465
6564
6669

[3,2,1,0,5,4,9,8,7,6,11,10,15,14,13,12,17,16,21,
 20,19,18,23,22,27,26,25,24,29,28,33,32,31,30,35,
 34,39,38,37,36,41,40,45,44,43,42,47,46,51,50,49,
 48,53,52,57,56,55,54,59,58,63,62,61,60,65,64,69]