A083923 Characteristic function for A057548.

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

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 * A352824 A101309 A141474

Adjacent sequences: A083920 A083921 A083922 * A083924 A083925 A083926

Keyword

nonn

Author

Antti Karttunen, May 13 2003

Status

approved