A162331 - OEIS

%I #7 Sep 16 2018 04:40:09

%S 18,24,33,39,48,51,75,78,90,99,144,153,162,171,174,189,195,198,243,

%T 249,252,267,270,303,315,318,327,330,336,345,348,360,375,399,405,411,

%U 420,432,450,453,456,468,474,477,483,489,492,495,504,516,525,531,534,540

%N Numbers k such that k^2 is an anagram of a pronic number.

%C 24 is in the sequence because 24^2 = 576 and 576 is an anagram of 756 = 27 * 28.

%C 48 is in the sequence because 48^2 = 2304 and 2304 is an anagram of 4032 = 63 * 64.

%Y Cf. A000290, A002378.

%K nonn,base

%O 1,1

%A _Claudio Meller_, Jul 01 2009