Triangle read by rows: numerators of degenerate Bernoulli numbers written as powers of lambda.

Terms

a(0) =1a(1) =-1a(2) =1a(3) =1a(4) =0a(5) =-1a(6) =0a(7) =-1a(8) =0a(9) =1a(10) =-1a(11) =0a(12) =2a(13) =0a(14) =-19a(15) =0a(16) =1a(17) =0a(18) =-5a(19) =0a(20) =9a(21) =1a(22) =0a(23) =-7a(24) =0a(25) =12a(26) =0a(27) =-863a(28) =0a(29) =-5