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A024639 as a simple table

na(n)
00
11
22
33
44
55
66
720
821
922
1023
1124
1225
1326
1440
1541
1642
1743
1844
1945
2046
2160
2261
2362
2463
2564
2665
2766
28210
29211
30212
31213
32214
33215
34216
35230
36231
37232
38233
39234
40235
41236
42250
43251
44252
45253
46254
47255
48256
49400
50401
51402
52403
53404
54405
55406
56420
57421
58422
59423
60424
61425

[0,1,2,3,4,5,6,20,21,22,23,24,25,26,40,41,42,43,
 44,45,46,60,61,62,63,64,65,66,210,211,212,213,214,
 215,216,230,231,232,233,234,235,236,250,251,252,
 253,254,255,256,400,401,402,403,404,405,406,420,
 421,422,423,424,425]