Coefficients for obtaining A120057 from Bell numbers.

Terms

a(0) =1a(1) =2a(2) =-1a(3) =3a(4) =-4a(5) =2a(6) =4a(7) =-9a(8) =10a(9) =-4a(10) =5a(11) =-16a(12) =28a(13) =-24a(14) =8a(15) =6a(16) =-25a(17) =60a(18) =-80a(19) =56a(20) =-16a(21) =7a(22) =-36a(23) =110a(24) =-200a(25) =216a(26) =-128a(27) =32a(28) =8a(29) =-49