id:A130695 - OEIS Search Results

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Number of ways to write n as (a+1)(b+1)(c+1) - abc with a, b, c nonnegative integers.

+0
1

1, 3, 3, 6, 3, 9, 4, 9, 6, 12, 3, 15, 6, 12, 9, 15, 3, 21, 7, 15, 9, 18, 6, 24, 9, 15, 9, 24, 6, 30, 6, 15, 15, 24, 9, 30, 7, 21, 12, 30, 3, 33, 15, 21, 15, 24, 6, 39, 12, 27, 12, 27, 9, 42, 12, 21, 15, 36, 6, 45, 13, 18, 21, 36, 12, 39, 6, 33, 15, 45, 9, 42, 12, 24, 24, 30, 9, 57, 18, 30 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Jan Kristian Haugland (jankrihau(AT)hotmail.com), Jul 10 2007, Table of n, a(n) for n = 1..200`
	EXAMPLE	`a(7) = 4 because 7 = 711-600 = 171-060 = 117-006 = 222-111.`
	CROSSREFS	`Sequence in context: A151787 A113397 A007425 this_sequence A058587 A112163 A163163` `Adjacent sequences: A130692 A130693 A130694 this_sequence A130696 A130697 A130698`
	KEYWORD	`nonn`
	AUTHOR	`Jan Kristian Haugland (jankrihau(AT)hotmail.com), Jul 10 2007`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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