Maximum number of binary strings with symmetrically partitioned n 1's and n 0's, counted up to isomorphism.

A250029

Maximum number of binary strings with symmetrically partitioned n 1's and n 0's, counted up to isomorphism.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =4a(4) =9a(5) =16a(6) =36a(7) =144a(8) =400a(9) =900a(10) =3600a(11) =11025a(12) =28224a(13) =78400a(14) =254016a(15) =705600a(16) =2286144a(17) =6350400a(18) =25401600a(19) =85377600a(20) =250905600a(21) =768398400a(22) =3073593600a(23) =10600761600a(24) =32464832400a(25) =129859329600a(26) =456536705625

External references