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A256298 as a simple table

na(n)
01
12
23
34
45
56
67
70
817
918
1019
1120
1221
1322
1423
1516
1625
1726
1827
1928
2029
2130
2231
2324
2433
2534
2635
2736
2837
2938
3039
3132
3241
3342
3443
3544
3645
3746
3847
3940
4049
4150
4251
4352
4453
4554
4655
4748
4857
4958
5059
5160
5261
5362
5463
5556
561
572
583
594

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