1,2
Minimum primes of the form n^(2^m) + (n+1)^(2^m) are listed in A122900. The exponents m are listed in A080121.
a(10)-a(13)>1000, a(14)-a(16)>100.
Table of n, a(n) for n=1..9.
T. D. Noe, Table of generalized Fermat primes of the form (k+1)^2^m + k^2^m
Eric Weisstein's World of Mathematics, Generalized Fermat Number
A080121 begins with 1,1,2,1,1,2,1,2,1,5,?,1,2,1,?,2,1,?,1,?,4,1,3,1,..., where the unknown terms (denoted with ?) are at least 10. So a(1) = 1, a(2) = 3, a(3) = 23, a(4) = 21, a(5) = 10.
Cf. A077659, A080121, A122900, A080208, A078902, A080134, A019434, A153504, A152913, A194185.
Sequence in context: A130475 A212998 A157819 * A297855 A298090 A298052
Adjacent sequences: A122899 A122900 A122901 * A122903 A122904 A122905
hard,more,nonn
Alexander Adamchuk, Sep 18 2006, Oct 01 2006
Edited by Max Alekseyev, Sep 09 2020
approved
