id:A056135 - OEIS Search Results

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Smallest positive integer other than n where geometric mean of n and a(n) is an integer.

+0
2

4, 8, 12, 1, 20, 24, 28, 2, 1, 40, 44, 3, 52, 56, 60, 1, 68, 2, 76, 5, 84, 88, 92, 6, 1, 104, 3, 7, 116, 120, 124, 2, 132, 136, 140, 1, 148, 152, 156, 10, 164, 168, 172, 11, 5, 184, 188, 3, 1, 2, 204, 13, 212, 6, 220, 14, 228, 232, 236, 15, 244, 248, 7, 1, 260, 264, 268, 17 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=A056134(n)^2/n. If n is square-free then a(n)=4n, otherwise a(n)=A007913(n)`
	CROSSREFS	`Sequence in context: A032819 A126006 A109239 this_sequence A120230 A086480 A103696` `Adjacent sequences: A056132 A056133 A056134 this_sequence A056136 A056137 A056138`
	KEYWORD	`easy,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jun 13 2000`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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