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A156176 A bisection of A002439. 1
23, 257543, 27138236663, 11828536957233383, 14639678925928297567703, 41393949926819051111431239623, 231969423543894989257690172433129143, 2330640193014931063017585202490874608196263, 38966520031501064708241399303059964064529134680983, 1023409776429490887726960719866571404072100379273323303303 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..9.

CROSSREFS

Sequence in context: A122148 A068736 A138763 * A013772 A320442 A034247

Adjacent sequences:  A156173 A156174 A156175 * A156177 A156178 A156179

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 07 2009

STATUS

approved

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Last modified July 16 13:27 EDT 2020. Contains 335788 sequences. (Running on oeis4.)