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 A104186 Number of distinct prime divisors of numbers from four consecutive concatenated odd numbers. 0
 2, 2, 2, 2, 3, 3, 3, 2, 2, 4, 2, 1, 3, 3, 2, 2, 3, 2, 2, 4, 3, 2, 4, 2, 2, 3, 3, 4, 4, 3, 2, 4, 3, 2, 5, 2, 2, 4, 1, 3, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Interestingly, 23252729 is prime. LINKS EXAMPLE The number of distinct prime factors of 1357 is 2 - the first term in the sequence. The number of distinct prime factors of 3579 is 2 - the second term in the sequence. The number of distinct prime factors of 57911 is 2 - the third term in the sequence. CROSSREFS Sequence in context: A168557 A194320 A120425 * A184320 A092363 A133874 Adjacent sequences:  A104183 A104184 A104185 * A104187 A104188 A104189 KEYWORD nonn,base AUTHOR Parthasarathy Nambi, Apr 16 2005 STATUS approved

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