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A218576 as a simple table

na(n)
01
11
22
34
47
514
625
744
879
9137
10237
11408
12689
131162
141946
153231
165342
178776
1814340
1923326
2037758
2160847
2297670
23156145
24248697
25394719
26624343
27984360
281547187
292424581
303788730
315904230
329176723
3314226914
3422002523
3533947526
3652258177
3780268131
38123028407

[1,1,2,4,7,14,25,44,79,137,237,408,689,1162,1946,
 3231,5342,8776,14340,23326,37758,60847,97670,
 156145,248697,394719,624343,984360,1547187,
 2424581,3788730,5904230,9176723,14226914,22002523,
 33947526,52258177,80268131,123028407]