Triangle read by rows. T(n, k) = BellPolynomial(n, -k).

Terms

a(0) =1a(1) =0a(2) =-1a(3) =0a(4) =0a(5) =2a(6) =0a(7) =1a(8) =2a(9) =-3a(10) =0a(11) =1a(12) =-6a(13) =-21a(14) =-20a(15) =0a(16) =-2a(17) =-14a(18) =24a(19) =172a(20) =370a(21) =0a(22) =-9a(23) =26a(24) =195a(25) =108a(26) =-1105a(27) =-4074a(28) =0a(29) =-9