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A113902
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Product of omega(n!) and bigomega(n!).
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0
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0, 1, 4, 8, 15, 21, 32, 44, 52, 60, 80, 95, 120, 132, 144, 168, 203, 224, 264, 288, 304, 320, 369, 405, 423, 441, 468, 495, 560, 590, 660, 715, 737, 759, 781, 825, 912, 936, 960, 1008, 1105, 1144, 1246, 1288, 1330, 1358, 1470, 1545, 1575, 1620, 1650, 1695
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OFFSET
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1,3
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COMMENTS
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omega(x!) is the number of primes <= x.
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LINKS
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FORMULA
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omega(x): number of distinct prime divisors of x. bigomega(x): number of prime divisors of x, counted with multiplicity.
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MATHEMATICA
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PrimeNu[#]PrimeOmega[#]&/@(Range[60]!) (* Harvey P. Dale, Aug 14 2013 *)
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PROG
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(PARI) omegafactxbigomegafact(n) = { local(x); for(x=1, n, print1(omega(x!)*bigomega(x!)", ") ) }
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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