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A034691 as a simple table

na(n)
01
11
23
37
418
542
6104
7244
8585
91373
103233
117533
1217547
1340591
1493711
15215379
16493735
171127979
182570519
195841443
2013243599
2129953851
2267604035
23152258271
24342253980
25767895424
261719854346
273845443858

[1,1,3,7,18,42,104,244,585,1373,3233,7533,17547,
 40591,93711,215379,493735,1127979,2570519,5841443,
 13243599,29953851,67604035,152258271,342253980,
 767895424,1719854346,3845443858]