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A006543 as a simple table

na(n)
11
22
33
44
55
66
710
815
945
10120
11990
1214190
13489555
14161226780
15476106503180
1619554673086218985
17698490144518203427450060
1817987097565293886931115539020016860
191246236391932004987381133823926620650891666994820

[1,2,3,4,5,6,10,15,45,120,990,14190,489555,
 161226780,476106503180,19554673086218985,
 698490144518203427450060,
 17987097565293886931115539020016860,
 1246236391932004987381133823926620650891666994820]