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A089283 Total number of prime factors of floor(pi*10^n), pi=3.14... 4
1, 1, 2, 3, 3, 1, 4, 3, 6, 3, 4, 2, 3, 3, 3, 3, 7, 2, 6, 9, 4, 6, 7, 8, 3, 5, 8, 3, 6, 6, 4, 6, 8, 2, 5, 7, 7, 1, 5, 2, 4, 6, 3, 5, 4, 6, 6, 3, 10, 3, 5, 6, 3, 6, 8, 6, 4, 5, 4, 6, 9, 7, 3, 9, 4, 6, 5, 6, 3, 6, 8, 10, 6, 7, 8, 5, 5, 7, 14, 5, 5 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

a(n)=A001222(A011545(n)).

EXAMPLE

n=6: floor(pi*10^6)=3141592=2*2*2*392699: a(6)=4.

CROSSREFS

Cf. A089282, A000796.

Sequence in context: A136453 A114104 A076780 * A077941 A077990 A085667

Adjacent sequences:  A089280 A089281 A089282 * A089284 A089285 A089286

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2003

EXTENSIONS

More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 31 2003

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Last modified February 14 03:03 EST 2012. Contains 205567 sequences.