A112963 Sum(mu(i)*tau(j): i+j=n), with mu=A008683 and tau=A000005.

0, 1, 1, -1, -1, -4, -2, -5, -5, -4, -7, -4, -6, -7, -11, 0, -12, -1, -11, -6, -12, -1, -20, 2, -13, -2, -16, 2, -19, 9, -18, -9, -20, 4, -31, 10, -21, -2, -18, 7, -20, 14, -26, -3, -16, 13, -40, 5, -26, 7, -22, -1, -40, 18, -32, 2, -21, 10, -40, 16, -25, 5, -21, 17, -41, 31, -40, -4, -14, 30, -38, 3, -39, 8, -21, 14, -58

Offset

1,6

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Example

a(5)=mu(1)*tau(4)+mu(2)*tau(3)+mu(3)*tau(2)+mu(4)*tau(1)
= 1*3 - 1*2 - 1*2 + 0*1 = -1.

Prog

(Haskell)
a112963 n = sum $ zipWith (*)
   a008683_list $ reverse $ take (n - 1) a000005_list
-- Reinhard Zumkeller, Feb 29 2012

Crossrefs

Cf. A006218, A055507, A068341, A112962, A112964, A112966, A112968.

Sequence in context: A049259 A010647 A021239 * A109174 A160211 A035584

Adjacent sequences: A112960 A112961 A112962 * A112964 A112965 A112966

Keyword

sign

Author

Reinhard Zumkeller, Oct 07 2005

Status

approved