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A054388 as a simple table

na(n)
01
13
25
328
472
5704
61664
72560
817408
9311296
10688128
113014656
126553600
1356623104
14121634816
15520093696
16369098752
177516192768
1879456894976
19111669149696
20704374636544
215909874999296
22824633720832
2351677046505472

[1,3,5,28,72,704,1664,2560,17408,311296,688128,
 3014656,6553600,56623104,121634816,520093696,
 369098752,7516192768,79456894976,111669149696,
 704374636544,5909874999296,824633720832,
 51677046505472]