[seqfan] A054767 Period of the sequence of Bell numbers mod n
Jean-François Alcover
jf.alcover at gmail.com
Tue Jul 31 10:37:47 CEST 2012
Bonjour,
According to the given formula, a(p*q) = a(p)*a(q) holds if p & q are prime.
So, I wonder why a(26)=117 instead of a(2)*a(13)=3*25239592216021
What do you think ?
jfa
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