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A001345 as a simple table

n a(n)
-1 7
0 16
1 49
2 212
3 1158
4 7584
5 57720
6 499680
7 4843440
8 51932160
9 610001280
10 7787404800
11 107336275200
12 1588369305600
13 25113574886400
14 422465999155200
15 7533512034048000
16 141940206600192000
17 2817400117948416000
18 58760985871171584000
19 1284693905417674752000

[7,16,49,212,1158,7584,57720,499680,4843440,
 51932160,610001280,7787404800,107336275200,
 1588369305600,25113574886400,422465999155200,
 7533512034048000,141940206600192000,
 2817400117948416000,58760985871171584000,
 1284693905417674752000]

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Last modified July 11 18:19 EDT 2020. Contains 335652 sequences. (Running on oeis4.)