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A159311 as a simple table

na(n)
01
11
22
36
426
5150
61066
78862
883506
9874302
1010035538
11125082870
121680770250
1324211249062
14372151797498
156080329604238
16105238649649762
171923853815102030
1837047429233963170
19749689860387252966

[1,1,2,6,26,150,1066,8862,83506,874302,10035538,
 125082870,1680770250,24211249062,372151797498,
 6080329604238,105238649649762,1923853815102030,
 37047429233963170,749689860387252966]