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Numbers n such that n3 is prime and n is a multiple of 10.
0

%I #7 Mar 23 2015 16:06:25

%S 0,10,50,110,130,200,220,250,280,290,320,380,400,460,470,490,500,530,

%T 550,590,620,670,680,710,760,770,880,910,920,940,980,1010,1030,1090,

%U 1100,1150,1190,1220,1250,1270,1300,1310,1390,1430,1450,1580,1610,1660,1670,1690,1720,1790,1850,1880

%N Numbers n such that n3 is prime and n is a multiple of 10.

%e If t=10, then t3 = 103 (prime).

%e If t=280, then t3 = 2803 (prime).

%e If t=490, then t3 = 4903 (prime).

%t Select[10*Range[0,200],PrimeQ[10#+3]&] (* _Harvey P. Dale_, Mar 23 2015 *)

%Y Cf. A102338.

%K base,nonn

%O 1,2

%A _Parthasarathy Nambi_, Mar 01 2005