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A224451
Primes of the form 4^n - n.
4
3, 61, 1019, 1180591620717411303389, 1569275433846670190958947355801916604025588861116008628129
OFFSET
1,1
COMMENTS
Corresponding n are given in A057908.
The next term has 797 digits. - Harvey P. Dale, Mar 16 2015
MATHEMATICA
Select[Table[4^n-n, {n, 200}], PrimeQ] (* Harvey P. Dale, Mar 16 2015 *)
CROSSREFS
Cf. A057908 (n such that 4^n - n is prime).
Sequence in context: A120308 A279381 A186205 * A239792 A009476 A292110
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, Apr 06 2013
STATUS
approved