Define E(n) = Sum_{k >= 0} (-1)^floor(k/3)*k^n/k! for n = 0,1,2,.... Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(2).

A143630

Define E(n) = Sum_{k >= 0} (-1)^floor(k/3)*k^n/k! for n = 0,1,2,.... Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(2).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =3a(4) =7a(5) =14a(6) =16a(7) =-77a(8) =-922a(9) =-6660a(10) =-41264a(11) =-233828a(12) =-1218392a(13) =-5607225a(14) =-19220589a(15) =4397930a(16) =1016675382a(17) =14251497833a(18) =151695504253

External references