A179212 First differences of A179211.

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

Offset: 1

Author

Reinhard Zumkeller, Jul 05 2010

Keywords

• sign

Comments

a(n) = A179211(n+1) - A179211(n);

-1 <= a(n) <= 2.

Formula

a(n) = A008966(2*n+2) + A008966(2*n+1) - A008966(n).