id:A130614 - OEIS Search Results

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Integers of the form p^(p-2), where p is prime.

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1, 3, 125, 16807, 2357947691, 1792160394037, 2862423051509815793, 5480386857784802185939, 39471584120695485887249589623, 3053134545970524535745336759489912159909 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Number of labeled trees on p(n) nodes, where p(n) is the n-th prime.`
	FORMULA	`a(n) = A000272(A000040(n)).`
	PROGRAM	`(MAGMA) [n^(n-2) : n in [2..40] \| IsPrime(n)];`
	CROSSREFS	`Cf. A000040, A000272, A036878.` `Sequence in context: A124246 A037118 A085531 this_sequence A114877 A086154 A133122` `Adjacent sequences: A130611 A130612 A130613 this_sequence A130615 A130616 A130617`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jonathan Vos Post (jvospost2(AT)yahoo.com), Jun 18 2007`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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