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A026871 as a simple table

na(n)
31
411
582
6519
73010
816563
988092
10457800
112340519
1211824761
1359217488
14294596574
151458173626
167189542273
1735341573246
18173322863748
19848473455491
204147736942919
2120254228370249
2298824420111063
23481889327547656

[1,11,82,519,3010,16563,88092,457800,2340519,
 11824761,59217488,294596574,1458173626,7189542273,
 35341573246,173322863748,848473455491,
 4147736942919,20254228370249,98824420111063,
 481889327547656]