Expansion of 1/((1 - x)^6 + x^6).

Terms

a(0) =1a(1) =6a(2) =21a(3) =56a(4) =126a(5) =252a(6) =461a(7) =780a(8) =1209a(9) =1638a(10) =1638a(11) =0a(12) =-6187a(13) =-23238a(14) =-63783a(15) =-151316a(16) =-326382a(17) =-652764a(18) =-1217483a(19) =-2107560a(20) =-3322995a(21) =-4538430a(22) =-4538430a(23) =0a(24) =16942381a(25) =63239286a(26) =172791861a(27) =408855776a(28) =880983606a(29) =1761967212