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A000691 as a simple table

na(n)
01
12
23
35
49
516
629
752
894
9175
10327
11616
121169
132231
144273
158215
1615842
1730628
1859345
19115208
20224040
21436343
22850981
231661663
243248231
256356076
2612448925
2724402959
2847873156
2993984236
30184632691
31362938014
32713852252
331404817026

[1,2,3,5,9,16,29,52,94,175,327,616,1169,2231,4273,
 8215,15842,30628,59345,115208,224040,436343,
 850981,1661663,3248231,6356076,12448925,24402959,
 47873156,93984236,184632691,362938014,713852252,
 1404817026]