Number of 2 X n binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order.

A181270

Number of 2 X n binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order.

Terms

    a(0) =1a(1) =2a(2) =11a(3) =44a(4) =188a(5) =752a(6) =3056a(7) =12224a(8) =49088a(9) =196352a(10) =786176a(11) =3144704a(12) =12581888a(13) =50327552a(14) =201322496a(15) =805289984a(16) =3221209088a(17) =12884836352a(18) =51539542016a(19) =206158168064a(20) =824633458688

External references