%I #22 Apr 08 2021 07:18:48
%S 8706123,24463374,32442848,32942943,36782289,48580623,55486248,
%T 57476573,59600365,59757774,62481222,62664810,62884590,63262374,
%U 63728124,64724373,65159575,65450824,69362487,70302087,70370223,70785924,71494773,72060272,72503682,73256910,73638422,74066874,74361858
%N Numbers k such that k, k+1, k+2 and k+3 are products of 6 primes (A046306).
%C a(1) = 8706123 = A067821(4).
%e 8706123 = 3^4*19*5657, 8706124 = 2*2*7*7*43*1033,
%e 8706125 = 5^3*17*17*241, 8706126 = 2*3*11*13*73*139.
%o (PARI) for(k=2^6,75000000,my(found=1);for(j=0,3,if(bigomega(k+j)!=6,found=0;break));if(found,print1(k,", "))) \\ _Hugo Pfoertner_, Oct 21 2020
%Y Cf. A067821, A046306, A237201.
%K nonn
%O 1,1
%A _Zak Seidov_, Sep 29 2020