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A235696 Semiprimes which have one or more occurrences of exactly eight different digits. 7
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

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

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

CROSSREFS

Cf. A235690-A235695.

Cf. A235154-A235161.

Sequence in context: A282873 A219743 A276510 * A074665 A235160 A109177

Adjacent sequences:  A235693 A235694 A235695 * A235697 A235698 A235699

KEYWORD

nonn,base

AUTHOR

Colin Barker, Jan 14 2014

STATUS

approved

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Last modified January 24 07:13 EST 2020. Contains 331189 sequences. (Running on oeis4.)