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

1,1

Links

Table of n, a(n) for n=1..32.

Prog

(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

Crossrefs

Cf. A235690-A235693, A235695, A235696.

Cf. A235154-A235161.

Sequence in context: A186087 A106814 A220076 * A235158 A074669 A241789

Adjacent sequences: A235691 A235692 A235693 * A235695 A235696 A235697

Keyword

nonn,base

Author

Colin Barker, Jan 14 2014

Status

approved