id:A055529 - OEIS Search Results

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

+0
1

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; listen)

	OFFSET	`0,4`
	COMMENT	`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: A089647 A001010 A091966 this_sequence A035564 A047084 A058518` `Adjacent sequences: A055526 A055527 A055528 this_sequence A055530 A055531 A055532`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (j.mccranie(AT)comcast.net), Jul 04 2000`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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