id:A152168 - OEIS Search Results

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Number of binary digits in (n!)!.

+0
1

1, 1, 2, 10, 80, 661, 5802, 54725, 558704, 6178565, 73840164, 950331113, 13121175977, 193618002604, 3042570732326, 50747501675076, 895651186352884, 16679929313440954, 326936145826028780, 6728526339596831313 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`Jon E. Schoenfield, Table of n, a(n) for n=0,...,30`
	EXAMPLE	`(3!)! = 6! = 720 has ten binary digits (1011010000), so a(3) = 10.`
	CROSSREFS	`Sequence in context: A081363 A100248 A108486 this_sequence A003578 A152600 A048286` `Adjacent sequences: A152165 A152166 A152167 this_sequence A152169 A152170 A152171`
	KEYWORD	`base,nonn`
	AUTHOR	`Jon E. Schoenfield (jonscho(AT)hiwaay.net), Nov 27 2008`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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