id:A086417 - OEIS Search Results

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Sum of divisors of 3-smooth numbers.

+0
4

1, 3, 4, 7, 12, 15, 13, 28, 31, 39, 60, 40, 63, 91, 124, 120, 127, 195, 121, 252, 280, 255, 403, 363, 508, 600, 364, 511, 819, 847, 1020, 1240, 1092, 1023, 1651, 1815, 1093, 2044, 2520, 2548, 2047, 3315, 3751, 3279, 4092, 5080, 5460, 4095, 3280 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A000203(A003586(n));` `a(n) = (2^(A022328(n)+1)-1)*(3^(A022329(n)+1)-1)/2.`
	CROSSREFS	`Cf. A086416.` `Sequence in context: A085188 A083561 A018195 this_sequence A051215 A034885 A130324` `Adjacent sequences: A086414 A086415 A086416 this_sequence A086418 A086419 A086420`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 18 2003`

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

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