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A269071 as a simple table

na(n)
113
276
3521
43288
520400
6123976
7742688
84397376
925791040
10150081504
11867569920
124986765312
1328523566592
14162453499008
15921756644864
165212543265792
1729388948548608
18165253519908352
19926962234179584
205188178346090496

[13,76,521,3288,20400,123976,742688,4397376,
 25791040,150081504,867569920,4986765312,
 28523566592,162453499008,921756644864,
 5212543265792,29388948548608,165253519908352,
 926962234179584,5188178346090496]