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A083923 Characteristic function for A057548. 3
0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..100.

Index entries for characteristic functions

FORMULA

a(n) = 1 if A057515(n)=1 (equivalently: if A072772(n)=0), otherwise 0.

CROSSREFS

a(n) = A083924(A069770(n)). Used to compute A083925.

Sequence in context: A284851 A289741 A127266 * A101309 A141474 A073424

Adjacent sequences:  A083920 A083921 A083922 * A083924 A083925 A083926

KEYWORD

nonn

AUTHOR

Antti Karttunen May 13 2003

STATUS

approved

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Last modified April 4 20:30 EDT 2020. Contains 333229 sequences. (Running on oeis4.)