A171905 a(1) = 1 and a(2) = 2, a(n) = |(sum of previous terms) - n|.

1, 2, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset

1,2

Links

Table of n, a(n) for n=1..99.

Crossrefs

Sequence in context: A171157 A194301 A194341 * A327406 A336865 A262257

Adjacent sequences: A171902 A171903 A171904 * A171906 A171907 A171908

Keyword

easy,nonn

Author

Giovanni Teofilatto, Oct 23 2010

Status

approved