Numerators in triangle formed from Bernoulli numbers.

Terms

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