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A065202 Characteristic function of A065201: a(n) = if A065201(k) = n for some k then 1 else 0. 3
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(A065200(n)) = 0 and a(A065201(n)) = 1.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

Index entries for characteristic functions

FORMULA

a(n) = A107078(A051119(n)). - Antti Karttunen, Aug 27 2017

PROG

(PARI)

A053585(n) = if(n>1, my(f=factor(n)); f[#f~, 1]^f[#f~, 2], 1) \\ Charles R Greathouse IV, Nov 10 2015

A051119(n) = (n/A053585(n));

A065202(n) = (1-abs(moebius(A051119(n)))); \\ Antti Karttunen, Aug 27 2017

CROSSREFS

Cf. A051119, A053585, A065201, A065200, A070003, A107078.

Sequence in context: A070109 A107846 A179801 * A323547 A294930 A294937

Adjacent sequences:  A065199 A065200 A065201 * A065203 A065204 A065205

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 21 2001

EXTENSIONS

Edited by Franklin T. Adams-Watters, Oct 27 2006

STATUS

approved

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Last modified November 13 21:28 EST 2019. Contains 329106 sequences. (Running on oeis4.)