

A045936


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


3



141, 212, 39693, 44360, 44361, 48919, 48920, 48921, 54349, 56014, 56015, 56791, 60044, 65721, 72650, 72651, 73292, 73293, 76581, 76582, 82324, 82325, 86331, 86332, 87758, 87759, 90092, 91814, 91815, 99843, 106249, 112142, 112143, 121594
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OFFSET

1,1


LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000


MATHEMATICA

npQ[n_]:=Length[Union[Length[FactorInteger[#]]&/@Range[n, n+7]]]==1
Select[Range[125000], npQ] (* Harvey P. Dale, Feb 23 2011 *)


CROSSREFS

Cf. A001221, A006049, A006073, A045932A045935, A045937A045938.
Sequence in context: A045935 A144799 A208179 * A228598 A031892 A063373
Adjacent sequences: A045933 A045934 A045935 * A045937 A045938 A045939


KEYWORD

nonn


AUTHOR

David W. Wilson


EXTENSIONS

Offset corrected by Amiram Eldar, Oct 26 2019


STATUS

approved



