cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A231253 Terms of A227891 of the form (p*q)^2, where p <= q are odious primes (A027697).

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%I A231253 #10 Aug 20 2017 23:20:09
%S A231253 582169,797449,1874161,1934881,2007889,2181529,3024121,3171961,
%T A231253 4879681,5387041,6775609,9174841,11771761,16072081,18653761,19070689,
%U A231253 20894041,22762441,25694761,26635921,29953729,31214569,33166081,40081561,42081169,45873529,48177481,49463089,50367409
%N A231253 Terms of A227891 of the form (p*q)^2, where p <= q are odious primes (A027697).
%C A231253 a(1) = 582169 is the smallest term > 1 of A227891 which does not have an evil prime divisor.
%C A231253 The sequence lists numbers of the form (p*q)^2 such that either q > p are both odious primes and among the numbers {p^2, p*q, q^2, p^2*q, q^2*p} there is exactly one odious, or q=p is an odious prime, while p^2 and p^3 are both evil.
%Y A231253 Cf. A000069, A001969, A027697, A227891.
%K A231253 nonn,base
%O A231253 1,1
%A A231253 _Vladimir Shevelev_ and _Peter J. C. Moses_, Nov 06 2013