1,1

The parity of n is opposite of the parity of the differences.

(* see programming in A075275 *)

Cf. A075275.

Sequence in context: A115025 A075428 A116077 this_sequence A011146 A058625 A006748

Adjacent sequences: A074141 A074142 A074143 this_sequence A074145 A074146 A074147

nonn

Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 16 2002