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 A092523 Number of distinct prime factors of n-th odd number. 4
 0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 3, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 2, 2, 1, 3, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 3, 1, 1, 2, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS a(n) = A001221(2*n-1). LINKS Eric Weisstein's World of Mathematics, Odd Number Eric Weisstein's World of Mathematics, Distinct Prime Factors MATHEMATICA Table[PrimeNu[n], {n, 1, 211, 2}] (* Harvey P. Dale, May 25 2015 *) CROSSREFS Cf. A091304. Sequence in context: A030382 A192004 A120889 * A120891 A034002 A276630 Adjacent sequences:  A092520 A092521 A092522 * A092524 A092525 A092526 KEYWORD nonn AUTHOR Reinhard Zumkeller, Apr 07 2004 STATUS approved

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Last modified August 22 12:56 EDT 2017. Contains 290948 sequences.