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A000690 as a simple table

na(n)
01
12
23
34
47
513
624
744
883
9157
10297
11567
121085
132086
144019
157766
1615039
1729181
1856717
19110408
20215225
21420076
22820836
231605587
243143562
256160098
2612080946
2723710229
2846565965
2991512121
30179947985
31354043613
32696935548
331372589372

[1,2,3,4,7,13,24,44,83,157,297,567,1085,2086,4019,
 7766,15039,29181,56717,110408,215225,420076,
 820836,1605587,3143562,6160098,12080946,23710229,
 46565965,91512121,179947985,354043613,696935548,
 1372589372]