A131802 - OEIS

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A131802

Sequence related to factorizations and prime signatures: a(1) = 1; for n>1, a(n) = A057567(n) - 2*A001055(n).

1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 3, 0, 1, 1, 2, 0, 3, 0, 3, 1, 1, 0, 7, 0, 1, 1, 3, 0, 5, 0, 5, 1, 1, 1, 8, 0, 1, 1, 7, 0, 5, 0, 3, 3, 1, 0, 14, 0, 3, 1, 3, 0, 7, 1, 7, 1, 1, 0, 14, 0, 1, 3, 8, 1, 5, 0, 3, 1, 5, 0, 20, 0, 1, 3, 3, 1, 5, 0, 14, 2, 1, 0, 14, 1, 1, 1, 7 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,12`
	EXAMPLE	`A001055(12) = 4 and A057567(12) = 11 so a(12) = 11 - 2*4 = 3`
	CROSSREFS	`Cf. A122819 A077569 A108464 A057567 A025487 A001055.` `Sequence in context: A048838 A181872 A059341 * A069023 A091614 A174433` `Adjacent sequences: A131799 A131800 A131801 * A131803 A131804 A131805`
	KEYWORD	`easy,nonn`
	AUTHOR	`Alford Arnold (Alford1940(AT)aol.com), Jul 18 2007`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.