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A087949 as a simple table

na(n)
01
11
21
32
45
516
659
7246
81131
95655
1030428
11174835
121066334
136870542
1446581883
15331237074
162463361903
1719112314727
18154364077009
191295325828045
2011273167827343
21101589943242179
22946577526626181
239107029927925714
2490359115887726302
25923509462029444933

[1,1,1,2,5,16,59,246,1131,5655,30428,174835,
 1066334,6870542,46581883,331237074,2463361903,
 19112314727,154364077009,1295325828045,
 11273167827343,101589943242179,946577526626181,
 9107029927925714,90359115887726302,
 923509462029444933]