A102564 A000120(A078008(n))-A078008(A000120(n)).

0, 0, 1, -1, 2, 0, 1, 1, 4, 2, 3, 3, 4, 4, 5, 1, 8, 6, 7, 7, 8, 8, 9, 5, 10, 10, 11, 7, 12, 8, 9, 5, 16, 14, 15, 15, 16, 16, 17, 13, 18, 18, 19, 15, 20, 16, 17, 13, 22, 22, 23, 19, 24, 20, 21, 17, 26, 22, 23, 19, 24, 20, 21, 9, 32, 30, 31, 31, 32, 32, 33, 29, 34, 34, 35, 31, 36, 32, 33, 29, 38, 38, 39, 35, 40, 36, 37, 33, 42, 38, 39, 35, 40, 36

Offset: 0

Author

Paul Barry, Jan 14 2005

Keywords

• easy
• sign

Comments

It would appear that a(2^(n+1))=2^n=A000079(n); a(2^(n+1)-1)+1=A078008(n); a(2^(n+1)+1)+1=2^n-1; a(4n+1)-a(2n+1)=n; a(8n+1)-a(4n+1)=2n.

Crossrefs

Cf. A102563, 102565.