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A215506 as a simple table

na(n)
01
11
25
339
4387
54516
659522
7864981
813641761
9230931591
104162594198
1179412758356
121595971048438
1333662065586127
14742852904575909
1517107642358401929
16410242691108675077
1710223836926997402818
18264339609703677876178
197079673476173815446742

[1,1,5,39,387,4516,59522,864981,13641761,
 230931591,4162594198,79412758356,1595971048438,
 33662065586127,742852904575909,17107642358401929,
 410242691108675077,10223836926997402818,
 264339609703677876178,7079673476173815446742]