id:A081812 - OEIS Search Results

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If n = p_1^e_1 * ... * p_k^e_k, p_1 < ... < p_k primes, then a(n) = Max{ Max(p_i, e_i) }.

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2, 3, 2, 5, 3, 7, 3, 3, 5, 11, 3, 13, 7, 5, 4, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 5, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 4, 7, 5, 17, 13, 53, 3, 11, 7, 19, 29, 59, 5, 61, 31, 7, 6, 13, 11, 67, 17, 23, 7, 71, 3, 73, 37, 5, 19, 11, 13, 79, 5, 4, 41, 83, 7, 17 (list; graph; listen)

	OFFSET	`2,1`
	PROGRAM	`(PARI) a(n)=local(f); if(n<1, 0, f=factor(n); vecmax(vector(matsize(f)[1], k, max(f[k, 1], f[k, 2]))))`
	CROSSREFS	`Sequence in context: A072593 A039635 A164858 this_sequence A139421 A165500 A072505` `Adjacent sequences: A081809 A081810 A081811 this_sequence A081813 A081814 A081815`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 10 2003`

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

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