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Primes not of form | 3^x - 2^y |.
(Formerly M5274)
5

%I M5274 #21 Oct 13 2019 11:20:48

%S 41,43,53,59,67,71,83,89,97,103,107,109,113,131,137,149,151,157,163,

%T 167,173,181,191,193,197,199,223,233,251,257,263,271,277,281,283,293,

%U 307,311,313,317,331,337,347,349,353,359,367,373,379,383,389

%N Primes not of form | 3^x - 2^y |.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H H. Gauchman and I. Rosenholtz (Proposers), R. Martin (Solver), <a href="https://www.jstor.org/stable/2691457">Difference of prime powers, Problem 1404</a>, Math. Mag., 65 (No. 4, 1992), 265; <a href="https://www.jstor.org/stable/2690747">Solution</a>, Math. Mag., 66 (No. 4, 1993), 269.

%Y Cf. A007644, A004051, A103146.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, _Mira Bernstein_, _Robert G. Wilson v_