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A005318 as a simple table

na(n)
00
11
22
34
47
513
624
744
884
9161
10309
11594
121164
132284
144484
158807
1617305
1734301
1868008
19134852
20267420
21530356
221051905
232095003
244172701
258311101
2616554194
2732973536
2865679652
29130828948
30261127540
31521203175
321040311347
332076449993
344144588885
358272623576

[0,1,2,4,7,13,24,44,84,161,309,594,1164,2284,4484,
 8807,17305,34301,68008,134852,267420,530356,
 1051905,2095003,4172701,8311101,16554194,32973536,
 65679652,130828948,261127540,521203175,1040311347,
 2076449993,4144588885,8272623576]