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A147670
Primes of the form : 8^n-7^n.
0
1273609, 6612607849, 2019169299698041, 151522599154859354635552921, 9745744932248196392577951049, 220850092209355591999793321040563526382178219220559368038951319096656329
OFFSET
1,1
COMMENTS
8^7-7^7=2097152-823543=1273609,...
The next term (a(7)) has 103 digits. - Harvey P. Dale, Jul 05 2023
MATHEMATICA
lst={}; Do[p=8^n-7^n; If[PrimeQ[p], AppendTo[lst, p]], {n, 6!}]; lst
Select[Table[8^n-7^n, {n, 100}], PrimeQ] (* Harvey P. Dale, Jul 05 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved