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A140264 as a simple table

na(n)
00
11
22
35
47
53
66
74
88
917
1019
1115
1223
1325
1421
1511
1613
179
1818
1916
2020
2112
2210
2314
2424
2522
2626
2753
2855
2951
3059
3161
3257
3347
3449
3545
3671
3773
3869
3977
4079
4175
4265
4367
4463
4535
4637
4733
4841
4943
5039
5129
5231
5327
5454
5552
5656
5748
5846
5950
6060
6158
6262
6336
6434
6538
6630
6728
6832
6942
7040
7144

[0,1,2,5,7,3,6,4,8,17,19,15,23,25,21,11,13,9,18,
 16,20,12,10,14,24,22,26,53,55,51,59,61,57,47,49,
 45,71,73,69,77,79,75,65,67,63,35,37,33,41,43,39,
 29,31,27,54,52,56,48,46,50,60,58,62,36,34,38,30,
 28,32,42,40,44]