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A253858 as a simple table

na(n)
119456
2291392
34186496
454933632
5700079360
69090451328
7118920758784
81541740409984
920040279401216
10260372862960000
113382959819079680
1243972750683508352
13571716808018664704
147430928932383333248

[19456,291392,4186496,54933632,700079360,
 9090451328,118920758784,1541740409984,
 20040279401216,260372862960000,3382959819079680,
 43972750683508352,571716808018664704,
 7430928932383333248]