A235696 Semiprimes which have one or more occurrences of exactly eight different digits.

10234569, 10234657, 10234685, 10234687, 10234769, 10234795, 10234859, 10234865, 10234879, 10234957, 10234967, 10235469, 10235479, 10235489, 10235497, 10235679, 10235689, 10235769, 10235789, 10235798, 10235846, 10235847, 10235879, 10235894, 10235947, 10235986

Offset: 1

Author

Colin Barker, Jan 14 2014

Keywords

• nonn
• base

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A235690-A235695.

Cf. A235154-A235161.

Programs

Mathematica

Select[Range[10234000,10236000],PrimeOmega[#]==Count[DigitCount[#],0]==2&] (* Harvey P. Dale, Sep 01 2014 *)

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(1030000); s=[]; for(n=1, #b, if(#vecsort(eval(Vec(Str(b[n]))),,8)==8, s=concat(s, b[n]))); s