a(n) = E(n) - E(n+1), where E(n) are the Euler numbers A122045(n).

A241209

a(n) = E(n) - E(n+1), where E(n) are the Euler numbers A122045(n).

Terms

    a(0) =1a(1) =1a(2) =-1a(3) =-5a(4) =5a(5) =61a(6) =-61a(7) =-1385a(8) =1385a(9) =50521a(10) =-50521a(11) =-2702765a(12) =2702765a(13) =199360981a(14) =-199360981a(15) =-19391512145a(16) =19391512145

External references