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A054949 as a simple table

n a(n)
1 1
2 1
3 19
4 1612
5 565276
6 734799976
7 3523103676184
8 63519230066936512
9 4400411105398828102336
10 1190433708177460323642937216
11 1270463865199882936737403300783744
12 5381067966904826663696685903449569172992
13 90765788839502187660342772995967835888789034496

[1,1,19,1612,565276,734799976,3523103676184,
 63519230066936512,4400411105398828102336,
 1190433708177460323642937216,
 1270463865199882936737403300783744,
 5381067966904826663696685903449569172992,
 90765788839502187660342772995967835888789034496]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)