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A254173 as a simple table

na(n)
11511152
236538548
31054310240
431143715804
5886761490936
624789263869340
7684072377169008
818738106424812380
9512823923719769272
1014030281670008005564
11383831267774223029112
1210500422875690342522680

[1511152,36538548,1054310240,31143715804,
 886761490936,24789263869340,684072377169008,
 18738106424812380,512823923719769272,
 14030281670008005564,383831267774223029112,
 10500422875690342522680]