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A324447 as a simple table

n a(n)
3 1
4 6
5 57
6 678
7 9375
8 146334
9 2555228
10 49498389
11 1054882116
12 24545326598
13 619415271672
14 16854164945997
15 491956017936245
16 15335174679459134
17 508475723159116576
18 17870522292434937714
19 663618269365250877446
20 25964529622925026990819
21 1067602511902741954478695

[1,6,57,678,9375,146334,2555228,49498389,
 1054882116,24545326598,619415271672,
 16854164945997,491956017936245,15335174679459134,
 508475723159116576,17870522292434937714,
 663618269365250877446,25964529622925026990819,
 1067602511902741954478695]

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Last modified January 23 13:49 EST 2020. Contains 331171 sequences. (Running on oeis4.)