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A280664 as a simple table

na(n)
01
11
21
32
42
53
64
75
86
98
1010
1112
1215
1318
1422
1527
1633
1739
1847
1956
2066
2179
2293
23109
24128
25150
26175
27204
28237
29274
30318
31367
32423
33487
34559
35641
36734
37839
38957
391091
401241
411410
421601
431814
442053
452322
462622
472957
483334
493752
504218
514740
525318
535962
546679

[1,1,1,2,2,3,4,5,6,8,10,12,15,18,22,27,33,39,47,
 56,66,79,93,109,128,150,175,204,237,274,318,367,
 423,487,559,641,734,839,957,1091,1241,1410,1601,
 1814,2053,2322,2622,2957,3334,3752,4218,4740,5318,
 5962,6679]