id:A045967 - OEIS Search Results

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a(1)=4; if n = Product p_i^e_i, n>1, then a(n) = Product p_{i+1}^{e_i+1}.

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4, 9, 25, 27, 49, 225, 121, 81, 125, 441, 169, 675, 289, 1089, 1225, 243, 361, 1125, 529, 1323, 3025, 1521, 841, 2025, 343, 2601, 625, 3267, 961, 11025, 1369, 729, 4225, 3249, 5929, 3375, 1681, 4761, 7225, 3969, 1849, 27225, 2209, 4563, 6125, 7569, 2809, 6075 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`From a puzzle proposed by Marc LeBrun (mlb(AT)well.com).`
	CROSSREFS	`Sequence in context: A093867 A126638 A073045 this_sequence A099998 A030140 A111245` `Adjacent sequences: A045964 A045965 A045966 this_sequence A045968 A045969 A045970`
	KEYWORD	`easy,nonn,nice`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from David W. Wilson (davidwwilson(AT)comcast.net).`

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

AT&T Labs Research