A235694 Semiprimes which have one or more occurrences of exactly six different digits.

102347, 102349, 102369, 102379, 102385, 102386, 102387, 102389, 102394, 102395, 102398, 102439, 102457, 102458, 102463, 102467, 102469, 102473, 102478, 102479, 102493, 102549, 102569, 102574, 102589, 102637, 102639, 102649, 102658, 102659, 102683, 102689

Offset: 1

Author

Colin Barker, Jan 14 2014

Keywords

• nonn
• base

Crossrefs

Cf. A235690-A235693, A235695, A235696.

Cf. A235154-A235161.

Programs

PARI

list(lim)=my(v=List(), t); forprime(p=2, sqrt(lim), t=p; forprime(q=p, lim\t, listput(v, t*q))); vecsort(Vec(v)) \\ From A001358
b=list(103000); s=[]; for(n=1, #b, if(#vecsort(eval(Vec(Str(b[n]))),,8)==6, s=concat(s, b[n]))); s