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Squares and cubes of nonprimes (without repetition).
0

%I #6 Jan 07 2013 02:29:45

%S 0,1,16,36,64,81,100,144,196,216,225,256,324,400,441,484,512,576,625,

%T 676,729,784,900,1000,1024,1089,1156,1225,1296,1444,1521,1600,1728,

%U 1764,1936,2025,2116,2304,2401,2500,2601,2704,2744,2916,3025,3136,3249,3364

%N Squares and cubes of nonprimes (without repetition).

%e a(1)=0 (square nonprime 0=cube nonprime 0), a(2)=1 (square nonprime 1=cube nonprime 1), a(3)=16 (square nonprime 4), a(4)=36 (square nonprime 6), a(5)=64 (square nonprime 8=cube nonprime 4), etc.

%Y Cf. A141468.

%K nonn

%O 1,3

%A _Juri-Stepan Gerasimov_, Dec 31 2008

%E 1156 inserted, 2309 replaced by 2304 by _R. J. Mathar_, Jan 03 2009