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A013400 as a simple table

n a(n)
0 -1
1 -7
2 -47
3 2529
4 474553
5 80543201
6 16320858097
7 4064194232641
8 1239800275237225
9 458973088380970433
10 203990713313188606561
11 107678055191713549688737
12 66805939165628021795993113

[-1,-7,-47,2529,474553,80543201,16320858097,
 4064194232641,1239800275237225,458973088380970433,
 203990713313188606561,107678055191713549688737,
 66805939165628021795993113]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)