0,6
a(n) = min{a : a > 0 and (a*2^2^n)! = -1 (mod a*2^2^n +1)}
Sequence in context: A089517 A035616 A033668 this_sequence A040308 A077810 A160901
Adjacent sequences: A030236 A030237 A030238 this_sequence A030240 A030241 A030242
nonn
Alar Leibak (aleibak(AT)cyber.ee)
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