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A068610 as a simple table

na(n)
01
118
27
324
411
514
65
720
823
910
103
1116
1219
1322
149
1512
1615
176
1821
198
2025
212
2213
234
2417
2566
2639
2770
2843
2976
3047
3180
3251
3328
3455
3558
3633
3762
3837
3968
4041
4172
4275
4346
4479
4550
4627
4754
4831
4960
5035
5164
5267
5340
5471
5574
5645
5778
5849
5952

[1,18,7,24,11,14,5,20,23,10,3,16,19,22,9,12,15,6,
 21,8,25,2,13,4,17,66,39,70,43,76,47,80,51,28,55,
 58,33,62,37,68,41,72,75,46,79,50,27,54,31,60,35,
 64,67,40,71,74,45,78,49,52]