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A300359 Primes of a056240-type 3. 3

%I #12 Mar 10 2018 14:44:54

%S 4327,6947,7283,7993,11863,12143,14591,15859,18583,18617,18839,18947,

%T 19661,20593,21059,21313,22853,29567,29917,31307,32531,32831,35023,

%U 35491,35671,39499,39659,40343,41579,42821,43853,46807,48221,49253,49363,49597,50411,51109,52667,54401

%N Primes of a056240-type 3.

%e 4327 is included because the smallest composite number whose sum of prime factors (with repetition)=4327 is 526809=4283*123, a multiple of the third prime below 4327 (not the first or second). 4327~3(30,8,6) is the smallest prime to have this property. Likewise 6947~3(30,6,4), and 7993~3(30,12,2).

%Y Cf. A056240, A295185, A299704, A293652, A299912, A300334.

%K nonn

%O 1,1

%A _David James Sycamore_, Mar 03 2018

%E Edited by _N. J. A. Sloane_, Mar 10 2018

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