A057936 - OEIS

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A057936

Number of prime factors of 8^n + 1 (counted with multiplicity).

2, 2, 4, 2, 4, 4, 4, 3, 6, 6, 5, 4, 4, 6, 7, 3, 6, 6, 5, 4, 7, 6, 5, 5, 7, 10, 10, 5, 5, 11, 5, 3, 9, 9, 11, 6, 7, 8, 7, 6, 7, 10, 6, 7, 12, 8, 7, 7, 7, 14, 11, 5, 6, 10, 12, 8, 9, 8, 8, 8, 4, 9, 13, 4, 11, 12, 8, 9, 8, 15, 8, 8, 6, 10, 12, 8, 12, 17, 6, 7, 15, 10, 9, 12, 12, 10, 11, 8, 8, 18, 12 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`S. S. Wagstaff, Jr., Main Tables from the Cunningham Project.` `S. S. Wagstaff, Jr., The Cunningham Project`
	FORMULA	`a(n) = A057953(2n) - A057953(n) - T. D. Noe (noe(AT)sspectra.com), Jun 19 2003`
	CROSSREFS	`Cf. A057934-A057941, A054992.` `Cf. A057953.` `Sequence in context: A100008 A102763 A054844 * A033097 A036845 A094269` `Adjacent sequences: A057933 A057934 A057935 * A057937 A057938 A057939`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Oct 15 2000.`

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Last modified February 14 13:08 EST 2012. Contains 205623 sequences.