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A203106 as a simple table

na(n)
16
236
31125
420459
5290787
64984843
786512536
81422678297
923676061927
10398569091990
116665187099447
12111312476711916
131863171147095028
1431177909529015664
15521431754829287284
168722671700852650274

[6,36,1125,20459,290787,4984843,86512536,
 1422678297,23676061927,398569091990,6665187099447,
 111312476711916,1863171147095028,
 31177909529015664,521431754829287284,
 8722671700852650274]