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A130381 as a simple table

na(n)
00
11
22
33
45
56
64
77
88
912
1013
1115
1216
1319
149
1514
1610
1718
1820
1911
2017
2121
2222
2332
2434
2531
2635
2736
2840
2941
3043
3144
3247
3352
3453
3556
3660
3724
3825
3937
4042
4151
4223
4338
4427
4549
4650
4729
4855
4957
5061
5128
5239
5326
5445
5554
5630
5746
5859
5962
6033
6148
6258
6363
6464
6591
6692
6797
6899
69103
7087

[0,1,2,3,5,6,4,7,8,12,13,15,16,19,9,14,10,18,20,
 11,17,21,22,32,34,31,35,36,40,41,43,44,47,52,53,
 56,60,24,25,37,42,51,23,38,27,49,50,29,55,57,61,
 28,39,26,45,54,30,46,59,62,33,48,58,63,64,91,92,
 97,99,103,87]