A045936 - OEIS

%I #13 Oct 26 2019 03:08:15

%S 141,212,39693,44360,44361,48919,48920,48921,54349,56014,56015,56791,

%T 60044,65721,72650,72651,73292,73293,76581,76582,82324,82325,86331,

%U 86332,87758,87759,90092,91814,91815,99843,106249,112142,112143,121594

%N Numbers n such that n through n+7 are divisible by the same number of distinct primes.

%H Amiram Eldar, <a href="/A045936/b045936.txt">Table of n, a(n) for n = 1..10000</a>

%t npQ[n_]:=Length[Union[Length[FactorInteger[#]]&/@Range[n,n+7]]]==1

%t Select[Range[125000],npQ]  (* _Harvey P. Dale_, Feb 23 2011 *)

%Y Cf. A001221, A006049, A006073, A045932-A045935, A045937-A045938.

%K nonn

%O 1,1

%A _David W. Wilson_

%E Offset corrected by _Amiram Eldar_, Oct 26 2019