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A152168 Number of binary digits in (n!)!. 1
1, 1, 2, 10, 80, 661, 5802, 54725, 558704, 6178565, 73840164, 950331113, 13121175977, 193618002604, 3042570732326, 50747501675076, 895651186352884, 16679929313440954, 326936145826028780, 6728526339596831313 (list; graph; refs; listen; history; internal format)
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 * A003578 A152600 A048286

Adjacent sequences:  A152165 A152166 A152167 * A152169 A152170 A152171

KEYWORD

base,nonn

AUTHOR

Jon E. Schoenfield (jonscho(AT)hiwaay.net), Nov 27 2008

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Last modified February 14 22:54 EST 2012. Contains 205685 sequences.