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A187007 as a simple table

n a(n)
1 1
2 3
3 12
4 69
5 538
6 5404
7 67092
8 997581
9 17337444
10 345547750
11 7778860028
12 195365725310
13 5418540898800
14 164556820433116
15 5432639292242576
16 193765826638479112
17 7426524928340527902
18 304439910637309354106 

[1,3,12,69,538,5404,67092,997581,17337444,
 345547750,7778860028,195365725310,5418540898800,
 164556820433116,5432639292242576,
 193765826638479112,7426524928340527902,
 304439910637309354106]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)