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A274258 as a simple table

n a(n)
0 1
1 7
2 133
3 4140
4 154938
5 6398717
6 281086555
7 12882897819
8 609038885805
9 29481041746958
10 1453894927584477
11 72789271870852237
12 3689808842747726368
13 189006099916444293090
14 9768094831949586349262
15 508712466332195692590121
16 26670630123516854616641671
17 1406503552584980596900001922
18 74559627811441047591493767590 

[1,7,133,4140,154938,6398717,281086555,
 12882897819,609038885805,29481041746958,
 1453894927584477,72789271870852237,
 3689808842747726368,189006099916444293090,
 9768094831949586349262,508712466332195692590121,
 26670630123516854616641671,
 1406503552584980596900001922,
 74559627811441047591493767590]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)