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

582169, 797449, 1874161, 1934881, 2007889, 2181529, 3024121, 3171961, 4879681, 5387041, 6775609, 9174841, 11771761, 16072081, 18653761, 19070689, 20894041, 22762441, 25694761, 26635921, 29953729, 31214569, 33166081, 40081561, 42081169, 45873529, 48177481, 49463089, 50367409

Offset

1,1

Comments

a(1) = 582169 is the smallest term > 1 of A227891 which does not have an evil prime divisor.

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.

Links

Table of n, a(n) for n=1..29.

Crossrefs

Cf. A000069, A001969, A027697, A227891.

Sequence in context: A237209 A234226 A190682 * A212468 A050518 A249610

Adjacent sequences: A231250 A231251 A231252 * A231254 A231255 A231256

Keyword

nonn,base

Author

Vladimir Shevelev and Peter J. C. Moses, Nov 06 2013

Status

approved