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A102872 Differences between 2^n and 3^m when they are nearly equal for n and m to 100. 1
1, 5, 7, 13, 47, 295, 1631, 1909, 6487, 13085, 84997, 502829, 517135, 2428309, 3605639, 5077565, 24062143, 149450423, 808182895, 985222181, 2978678759, 6719515981, 43295774645, 252223018333, 267326277407, 1170495537221 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

a(q) = If 2^n and 3^m are such that 2^n>3^n and Floor[2^n/3^m]<2, then a[q]=Abs[2^n-3^m]

MATHEMATICA

c = Delete[Union[Flatten[Table[Table[If [ (2^n > 3^m) && Floor[2^n/3^m] < 2, Abs[2^n - 3^m], 0], {m, 1, n}], {n, 1, 100}], 1]], 1

CROSSREFS

Sequence in context: A174874 A109904 A077781 * A102873 A158892 A106022

Adjacent sequences:  A102869 A102870 A102871 * A102873 A102874 A102875

KEYWORD

nonn

AUTHOR

Roger Lee Bagula (rlbagulatftn(AT)yahoo.com), Mar 01 2005

EXTENSIONS

Is this well-defined? "Up to 100" bothers me. - N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 21:07 EST 2012. Contains 205856 sequences.