id:A025544 - OEIS Search Results

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a(n) = sum of the exponents in the prime factorization of the least common multiple of the first n composite numbers.

+0
1

2, 3, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 11, 12, 12, 12, 13, 13, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 19, 19, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) = A001222(A025543(n+1)).`
	CROSSREFS	`Sequence in context: A097622 A110010 A091987 this_sequence A121856 A132172 A080680` `Adjacent sequences: A025541 A025542 A025543 this_sequence A025545 A025546 A025547`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), May 01 2007`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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