Triangle read by rows. G(n, k) an additive decomposition of 2^n*G(n), G(n) the Genocchi numbers.

Terms

a(0) =1a(1) =0a(2) =-2a(3) =0a(4) =-3a(5) =3a(6) =0a(7) =-4a(8) =12a(9) =0a(10) =0a(11) =-5a(12) =35a(13) =0a(14) =-30a(15) =0a(16) =-6a(17) =90a(18) =0a(19) =-360a(20) =180a(21) =0a(22) =-7a(23) =217a(24) =0a(25) =-2730a(26) =3150a(27) =-630a(28) =0a(29) =-8