id:A033457 - OEIS Search Results

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G.c.d.-convolution of squares A000290 with themselves.

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1, 2, 6, 4, 19, 6, 28, 24, 45, 10, 98, 12, 79, 94, 120, 16, 201, 18, 238, 164, 171, 22, 436, 120, 229, 234, 426, 28, 695, 30, 496, 352, 369, 370, 1014, 36, 451, 470, 1068, 40, 1261, 42, 946, 1020, 639, 46, 1832, 336 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`Sum_{d\|n, d<n} d^2*phi(n/d). - Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 27 2003`
	CROSSREFS	`Cf. A069097.` `Sequence in context: A127320 A098917 A054786 this_sequence A133936 A065350 A063427` `Adjacent sequences: A033454 A033455 A033456 this_sequence A033458 A033459 A033460`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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