id:A088535 - OEIS Search Results

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n representable as x^2+xy+y^2 and such that 3 divides sigma(n).

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49, 147, 169, 196, 361, 441, 507, 588, 637, 676, 784, 931, 961, 1083, 1183, 1225, 1323, 1369, 1444, 1519, 1521, 1764, 1813, 1849, 1911, 2028, 2107, 2352, 2527, 2548, 2704, 2793, 2883, 2989, 3136, 3211, 3249, 3283, 3549, 3577, 3675, 3721, 3724, 3844, 3871 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`n in A003136 and in A087943`
	CROSSREFS	`Sequence in context: A009404 A087354 A098442 this_sequence A045897 A027469 A044381` `Adjacent sequences: A088532 A088533 A088534 this_sequence A088536 A088537 A088538`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 16 2003`
	EXTENSIONS	`More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 09 2005`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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