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A102150 as a simple table

na(n)
00
12
23
312
413
5123
6124
7132
8213
9214
101234
111235
121236
131243
141324
151325
161352
171423
1812346
1912347
2012350
2112354
2212364
2312374
2412376
2512435
26123457
27123458
28123459
29123460
301234567
311234568
321234569
331234570
341234571
351234586
361234596

[0,2,3,12,13,123,124,132,213,214,1234,1235,1236,
 1243,1324,1325,1352,1423,12346,12347,12350,12354,
 12364,12374,12376,12435,123457,123458,123459,
 123460,1234567,1234568,1234569,1234570,1234571,
 1234586,1234596]