A055529 - OEIS

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A055529

Number of bits needed in mantissa to express n! exactly.

1, 1, 1, 2, 2, 4, 6, 9, 9, 12, 14, 18, 19, 23, 26, 30, 30, 34, 37, 41, 44, 48, 51, 56, 58, 62, 66, 71, 73, 78, 82, 87, 87, 92, 96, 101, 105, 110, 114, 119, 122, 127, 131, 137, 140, 146, 150, 156, 157, 163, 168, 173, 177, 183, 188, 193, 196, 202, 207, 213, 217, 223 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	COMMENTS	`Number of bits in terms of A049606.`
	EXAMPLE	`10! = 14175*2^8, 14175 can be represented exactly using 14 bit mantissa in binary floating point representation, so a(10)=14.`
	CROSSREFS	`Cf. A049606.` `Sequence in context: A153964 A001010 A091966 * A035564 A192684 A047084` `Adjacent sequences: A055526 A055527 A055528 * A055530 A055531 A055532`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Jul 04 2000`

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Last modified February 15 15:17 EST 2012. Contains 205823 sequences.