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A045932 Numbers n such that n through n+3 are divisible by the same number of distinct primes. 11
2, 33, 54, 55, 74, 85, 91, 92, 93, 115, 116, 133, 141, 142, 143, 144, 145, 158, 159, 175, 200, 205, 206, 212, 213, 214, 215, 216, 247, 295, 296, 301, 302, 323, 324, 325, 326, 332, 391, 392, 422, 445, 451, 535, 536, 542, 565, 632, 685, 686, 721, 722, 799, 800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Transpose[Select[Partition[Range[900], 4, 1], Length[Union[PrimeNu[#]]] == 1&]][[1]] (* Harvey P. Dale, Apr 12 2013 *)

CROSSREFS

Cf. A001221, A006049, A006073, A045933-A045938.

Sequence in context: A042251 A316736 A199551 * A048783 A116340 A003347

Adjacent sequences:  A045929 A045930 A045931 * A045933 A045934 A045935

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified November 29 23:37 EST 2020. Contains 338780 sequences. (Running on oeis4.)