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A052391 as a simple table

n a(n)
1 0
2 0
3 4
4 349
5 9985
6 213230
7 4000444
8 69940479
9 1170549895
10 19024433560
11 302846958634
12 4748624978009
13 73628721516805
14 1132119741733890
15 17298702716660824
16 263082403948681939
17 3986935934969727715

[0,0,4,349,9985,213230,4000444,69940479,
 1170549895,19024433560,302846958634,4748624978009,
 73628721516805,1132119741733890,17298702716660824,
 263082403948681939,3986935934969727715]

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)