id:A113902 - OEIS Search Results

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Product of omega(n!) and bigomega(n!).

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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 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`omega(x!) is the number of primes <= x.`
	FORMULA	`omega(x): number of distinct prime divisors of x. bigomega(x): number of prime divisors of x, counted with multiplicity.`
	PROGRAM	`(PARI) omegafactxbigomegafact(n) = { local(x); for(x=1, n, print1(omega(x!)*bigomega(x!)", ") ) }`
	CROSSREFS	`Sequence in context: A104101 A136403 A071422 this_sequence A024916 A102216 A001182` `Adjacent sequences: A113899 A113900 A113901 this_sequence A113903 A113904 A113905`
	KEYWORD	`easy,nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Jan 29 2006`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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