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A085328 Record values in A085068. 3
1, 3, 9, 15, 17, 18, 24, 27, 28, 30, 40, 41, 44, 47, 48, 50, 51, 52, 53, 56, 57, 60, 64, 67 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

J. C. Lagarias and N. J. A. Sloane, Approximate squaring (pdf, ps), Experimental Math., 13 (2004), 113-128.

MATHEMATICA

f[n_] := Block[{c = 1, k = 4 n/3}, While[ ! IntegerQ@k, c++; k = 4 Ceiling@k/3]; c]; t = Table[0, {1000}]; Do[ a = f@n; If[a < 101 && t[[a]] == 0, t[[a]] = n; Print[{a, n}]], {n, 0, 21*10^8}] (* Robert G. Wilson v, May 28 2007 *)

CROSSREFS

Cf. A085068, A085071, A085330.

Sequence in context: A030342 A273323 A061966 * A291347 A062220 A310328

Adjacent sequences:  A085325 A085326 A085327 * A085329 A085330 A085331

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Aug 13 2003

EXTENSIONS

More terms from Jason Earls, Aug 14 2003

a(12)-a(16) from Robert G. Wilson v, May 28 2007

a(17)-a(24) from Lars Blomberg, Mar 03 2018

STATUS

approved

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Last modified September 16 16:17 EDT 2021. Contains 347473 sequences. (Running on oeis4.)