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A276723 as a simple table

na(n)
01
11
22
35
415
552
6203
7877
83263
911155
1036810
11120635
12398736
131340561
144605989
1515908448
1654826671
17188085307
18642431001
192188102307
207446095610
2125366540627
2286531467800
23295449388797
241009134603216
253446558809107
2611767813404774
2740167156826109

[1,1,2,5,15,52,203,877,3263,11155,36810,120635,
 398736,1340561,4605989,15908448,54826671,
 188085307,642431001,2188102307,7446095610,
 25366540627,86531467800,295449388797,
 1009134603216,3446558809107,11767813404774,
 40167156826109]