editing

approved

a(n) = (-2)^n + (n+1)!/2 - (3+n)*Gamma(1+n,-2)/(2 *e^2). - Benedict W. J. Irwin, Jul 06 2020

reviewed

editing

proposed

reviewed

editing

proposed

a(n) = (-2)^n + (n+1)!/2 - (3+n)*Gamma(1+n,-2)/(2 Ee^2). - Benedict W. J. Irwin, Jul 06 2020

proposed

editing

editing

proposed

a(n) = (-2)^n + (n+1)!/2 - ( - (3+n)*Gamma(1+n,-2)/(2 E^2). - Benedict W. J. Irwin, Jul 06 2020

proposed

editing

editing

proposed

a(n) = (-2)^n + (n+1)!/2 - (3+n)*Gamma(1+n,-2)/(2 E^2). - Benedict W. J. Irwin, Jul 06 2020

approved

editing

Benedict W. J. Irwin: Obtained from Inverse Z-transform of  G(1/x)

proposed

approved