Exponential generating function is -f(x) * Integral_{t = 0..x} exp(exp(-t) - 1) dt, where f(x) = exp(1 - x - exp(-x)) is the exponential generating function for A014182.

A014619

Exponential generating function is -f(x) * Integral_{t = 0..x} exp(exp(-t) - 1) dt, where f(x) = exp(1 - x - exp(-x)) is the exponential generating function for A014182.

Terms

    a(0) =-1a(1) =1a(2) =1a(3) =-5a(4) =5a(5) =21a(6) =-105a(7) =141a(8) =777a(9) =-5513a(10) =13209a(11) =39821a(12) =-527525a(13) =2257425a(14) =-41511a(15) =-70561285a(16) =531862173a(17) =-1559180499a(18) =-8858267353a(19) =147780183829a(20) =-936560917615

External references