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A199518 as a simple table

n a(n)
1 1
2 45
3 1260
4 15400
5 2513869
6 174524175
7 5866391058
8 78538951349
9 14918883751196
10 1134907763429651
11 40321453946092356
12 558398606969183196
13 113331120839472129952
14 8998123036816556850222
15 328615244611727182223731

[1,45,1260,15400,2513869,174524175,5866391058,
 78538951349,14918883751196,1134907763429651,
 40321453946092356,558398606969183196,
 113331120839472129952,8998123036816556850222,
 328615244611727182223731]

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Last modified January 28 17:34 EST 2022. Contains 350657 sequences. (Running on oeis4.)