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A212671 as a simple table

n a(n)
0 1
1 2
2 1
3 2
4 6
5 720
6 362880
7 6402373705728000
8 265252859812191058636308480000000
9 710998587804863451854045647463724949736497978881168458687447040000000000000

[1,2,1,2,6,720,362880,6402373705728000,
 265252859812191058636308480000000,
 71099858780486345185404564746372494973649797888116\
 8458687447040000000000000]

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Last modified July 24 21:31 EDT 2024. Contains 374585 sequences. (Running on oeis4.)