A179753 Integers (2k)-1..0 followed by integers (2k)+1..0 and so on.

1, 0, 3, 2, 1, 0, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

Offset

1,3

Links

Table of n, a(n) for n=1..90.

Formula

a(n) = (2*A000194(n)) - A074294(n).

Mathematica

Flatten[Table[Range[2n-1, 0, -1], {n, 10}]] (* Harvey P. Dale, Oct 08 2012 *)

Crossrefs

Sequence in context: A194885 A128317 A344348 * A279318 A084269 A051427

Adjacent sequences: A179750 A179751 A179752 * A179754 A179755 A179756

Keyword

nonn

Author

Antti Karttunen, Aug 03 2010

Status

approved