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A258830 as a simple table

na(n)
01
11
22
35
420
587
6522
73271
826168
9214955
102149550
1121881103
12262573236
133191361201
1444679056814
15631546127049
1610104738032784
17162891774138339
182932051934490102
1953094870211027831
201061897404220556620
2121342730463672017301
22469540070200784380622

[1,1,2,5,20,87,522,3271,26168,214955,2149550,
 21881103,262573236,3191361201,44679056814,
 631546127049,10104738032784,162891774138339,
 2932051934490102,53094870211027831,
 1061897404220556620,21342730463672017301,
 469540070200784380622]