A156731 a(n)=(v(2*n+1)-v(2*n-1))/2 where v(n)=A156253(n)-A156251(n).

0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1

Offset

1,1

Links

Table of n, a(n) for n=1..105.

Crossrefs

Cf. A054354

Sequence in context: A111406 A353463 A260445 * A254379 A288257 A285666

Adjacent sequences: A156728 A156729 A156730 * A156732 A156733 A156734

Keyword

nonn

Author

Benoit Cloitre, Feb 14 2009

Status

approved