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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 Table of n, a(n) for n=1..105. 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 Adjacent sequences: A077430 A077431 A077432 * A077434 A077435 A077436 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.)