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A280663 as a simple table

na(n)
01
11
21
32
42
53
64
75
87
99
1011
1114
1217
1321
1426
1532
1639
1747
1857
1968
2081
2197
22115
23136
24162
25190
26223
27263
28306
29357
30417
31483
32561
33650
34750
35866
36997
371145
381315
391507
401725
411971
422250
432564
442917
453318
463766
474270
484840
495475
506188
516990
527881
538881

[1,1,1,2,2,3,4,5,7,9,11,14,17,21,26,32,39,47,57,
 68,81,97,115,136,162,190,223,263,306,357,417,483,
 561,650,750,866,997,1145,1315,1507,1725,1971,2250,
 2564,2917,3318,3766,4270,4840,5475,6188,6990,7881,
 8881]