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A018165 as a simple table

na(n)
01
11
23
35
410
518
632
757
8101
9181
10324
11577
121029
131835
143271
155832
1610396
1718532
1833035
1958889
20104976
21187130
22333579
23594639
241060005
251889568
263368348
276004426
2810703505
2919080094
3034012224
3160630274

[1,1,3,5,10,18,32,57,101,181,324,577,1029,1835,
 3271,5832,10396,18532,33035,58889,104976,187130,
 333579,594639,1060005,1889568,3368348,6004426,
 10703505,19080094,34012224,60630274]