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A115348 as a simple table

na(n)
016384
1327680
23440640
312107776
425231360
5242155520
6145080320
72542632960
83921969152
918645975040
1067413278720
11107214356480
12688149954560
13882910511104
145003772477440
159509919129600
1628675705569280
1785303631052800

[16384,327680,3440640,12107776,25231360,242155520,
 145080320,2542632960,3921969152,18645975040,
 67413278720,107214356480,688149954560,
 882910511104,5003772477440,9509919129600,
 28675705569280,85303631052800]