A132349 - OEIS

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A132349

If n is a k-th power with k >= 2 then a(n) = k, otherwise a(n) = 0.

0, 0, 0, 2, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 3, 0, 0, 0, 0, 5, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	PROG	`(PARI) r(n) = for(j=1, n, print1(ispower(j)", ")); r(100)`
	CROSSREFS	`Cf. A132384-A132352.` `Sequence in context: A202425 A113503 A082507 * A123391 A171871 A076260` `Adjacent sequences: A132346 A132347 A132348 * A132350 A132351 A132352`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 11 2007`

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Last modified February 14 07:52 EST 2012. Contains 205597 sequences.