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Search: id:A087668
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A087668 Where records occur in A087664. +0
4
8, 9, 11, 13, 15, 133, 2317, 39845 (list; graph; listen)
OFFSET

1,1

PROGRAM

(PARI) A087664(n)={ local(x, s) ; x=n/4 ; s=0 ; while( type(x)!="t_INT", x *= floor(x) ; s++ ; ) ; return(s) ; } { rec=-1 ; for(n=8, 1000000, a=A087664(n) ; if(a>rec, rec=a ; print(n) ; ) ; ) ; } - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 25 2006

CROSSREFS

Cf. A087664, A087667.

Sequence in context: A114460 A120201 A128234 this_sequence A120176 A048590 A131864

Adjacent sequences: A087665 A087666 A087667 this_sequence A087669 A087670 A087671

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Sep 27 2003

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 25 2006

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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