Square array T(i,j) = Bernoulli(2i)*Bernoulli(2j) read by antidiagonals: numerators.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =1a(5) =-1a(6) =1a(7) =-1a(8) =-1a(9) =1a(10) =-1a(11) =1a(12) =1a(13) =1a(14) =-1a(15) =5a(16) =-1a(17) =-1a(18) =-1a(19) =-1a(20) =5a(21) =-691a(22) =5a(23) =1a(24) =1a(25) =1a(26) =5a(27) =-691a(28) =7a(29) =-691