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 A101937 Numbers n with omega(n) > omega of 2 nearest larger and 2 nearest smaller neighbors. 2
 6, 30, 42, 60, 66, 70, 78, 84, 90, 102, 105, 110, 114, 120, 126, 150, 165, 174, 186, 190, 195, 198, 204, 210, 234, 246, 252, 255, 270, 273, 276, 290, 294, 300, 315, 318, 322, 330, 336, 345, 354, 357, 360, 385, 390, 396, 399, 402, 414, 420 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Prime factors counted without multiplicity. - Harvey P. Dale, Dec 17 2014 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE 150 is in the sequence because it has three unique prime factors (2,3 and 5), whereas 148, 149, 151 and 152 each have fewer. MATHEMATICA For[i=2, i<1000, If[And[Length[FactorInteger[i-2]]{a, b, d, e}]; Flatten[Position[ Partition[ PrimeNu[Range[500]], 5, 1], _?(gr3Q[#]&)]]+2 (* Harvey P. Dale, Dec 17 2014 *) CROSSREFS Cf. A001221, A076763. Sequence in context: A003062 A327157 A309312 * A101939 A290466 A293188 Adjacent sequences:  A101934 A101935 A101936 * A101938 A101939 A101940 KEYWORD easy,nonn AUTHOR Neil Fernandez, Dec 21 2004 STATUS approved

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Last modified December 11 02:29 EST 2019. Contains 329911 sequences. (Running on oeis4.)