A105349 Characteristic sequence for the Pell numbers.

1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 0, 0, 0, 0, 1, 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..89.

Index entries for characteristic functions

Formula

G.f. : sum{k>=0, x^A000129(k)}.

Crossrefs

Sequence in context: A261178 A204439 A204443 * A096606 A351114 A128190

Adjacent sequences: A105346 A105347 A105348 * A105350 A105351 A105352

Keyword

easy,nonn

Author

Paul Barry, Apr 01 2005

Status

approved