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 A072978 Numbers of the form m*2^Omega(m), where m>1 is odd and Omega(m)=A001222(m), the number of prime factors of m. 18
 1, 6, 10, 14, 22, 26, 34, 36, 38, 46, 58, 60, 62, 74, 82, 84, 86, 94, 100, 106, 118, 122, 132, 134, 140, 142, 146, 156, 158, 166, 178, 194, 196, 202, 204, 206, 214, 216, 218, 220, 226, 228, 254, 260, 262, 274, 276, 278, 298, 302, 308, 314, 326, 334, 340, 346 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS (number of odd prime factors)=(number of even prime factors). A007814(a(n)) = A087436(a(n)); A000400, A011557, A001023, A001024, A009965, A009966 and A009975 are subsequences. - Reinhard Zumkeller, Jan 06 2008 Subsequence of A028260. [From Reinhard Zumkeller, Sep 20 2008] LINKS R. Zumkeller, Table of n, a(n) for n = 1..10000 MATHEMATICA Sort[Table[m*2^PrimeOmega[m], {m, 1, 250, 2}]] (* Harvey P. Dale, Oct 18 2013 *) CROSSREFS Sequence in context: A315234 A315235 A080784 * A055163 A342192 A119431 Adjacent sequences: A072975 A072976 A072977 * A072979 A072980 A072981 KEYWORD nonn,nice AUTHOR Reinhard Zumkeller, Aug 20 2002 STATUS approved

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Last modified June 3 10:54 EDT 2023. Contains 363110 sequences. (Running on oeis4.)