Square array T(M,N) read by antidiagonals: number of dimer tilings of a 2*M X 2*N Moebius strip.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =11a(8) =7a(9) =1a(10) =1a(11) =41a(12) =71a(13) =18a(14) =1a(15) =1a(16) =153a(17) =769a(18) =539a(19) =47a(20) =1a(21) =1a(22) =571a(23) =8449a(24) =17753a(25) =4271a(26) =123a(27) =1a(28) =1a(29) =2131