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A058821 as a simple table

na(n)
01
16
221
3146
4981
56222
638921
7239946
81469826
98957976
1054420339
11329815506
121995387801
1312056025246
1472766743801
15438839319470
162644790643216
1715930973595046
1895917737415956
19577288174746786
203473350521083199
2120892333943230346
22125638899138654861

[1,6,21,146,981,6222,38921,239946,1469826,8957976,
 54420339,329815506,1995387801,12056025246,
 72766743801,438839319470,2644790643216,
 15930973595046,95917737415956,577288174746786,
 3473350521083199,20892333943230346,
 125638899138654861]