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A256807 as a simple table

na(n)
11731
215291
3140031
41226781
510791281
695609517
7845074953
87462718887
965946786795
10582793811989
115149483657453
1245501162090307
13402065378129851
143552750855171131
1531392826101389087
16277394754458635673

[1731,15291,140031,1226781,10791281,95609517,
 845074953,7462718887,65946786795,582793811989,
 5149483657453,45501162090307,402065378129851,
 3552750855171131,31392826101389087,
 277394754458635673]