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A085515 as a simple table

na(n)
11
22
33
46
54
65
77
88
910
1011
119
1213
1312
1415
1516
1614
1717
1818
1921
2019
2120
2223
2322
2425
2524
2626
2731
2827
2928
3030
3129
3232
3334
3433
3535

[1,2,3,6,4,5,7,8,10,11,9,13,12,15,16,14,17,18,21,
 19,20,23,22,25,24,26,31,27,28,30,29,32,34,33,35]