Partial alternating sums of the Dedekind psi function (A001615): a(n) = Sum_{k=1..n} (-1)^(k+1) * psi(k).
A357817
Partial alternating sums of the Dedekind psi function (A001615): a(n) = Sum_{k=1..n} (-1)^(k+1) * psi(k).
Terms
- a(0) =1a(1) =-2a(2) =2a(3) =-4a(4) =2a(5) =-10a(6) =-2a(7) =-14a(8) =-2a(9) =-20a(10) =-8a(11) =-32a(12) =-18a(13) =-42a(14) =-18a(15) =-42a(16) =-24a(17) =-60a(18) =-40a(19) =-76a(20) =-44a(21) =-80a(22) =-56a(23) =-104a(24) =-74a(25) =-116a(26) =-80a(27) =-128a(28) =-98a(29) =-170
External references
- oeis: A357817