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A077433 Number of separating zeros to represent A077431. 2
0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,23
LINKS
FORMULA
a(n) = floor((floor(log_10(2*n^2))+1)/2).
EXAMPLE
a(256)=3, as A077431(256)=256000256 and A077432(256)=256000256^2=65536'131072'065536; two zeros would not be enough, as 25600256^2 = 65537'31072'65536.
CROSSREFS
a(n) = floor(A077430(n)/2).
Sequence in context: A211669 A065687 A300403 * A065685 A084100 A329683
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Nov 05 2002
STATUS
approved

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Last modified July 13 00:23 EDT 2024. Contains 374259 sequences. (Running on oeis4.)