Array read by antidiagonals: T(m,n) is the number of fixed polyominoes that have a width of m and height of n.

A292357

Array read by antidiagonals: T(m,n) is the number of fixed polyominoes that have a width of m and height of n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =15a(8) =15a(9) =1a(10) =1a(11) =39a(12) =111a(13) =39a(14) =1a(15) =1a(16) =97a(17) =649a(18) =649a(19) =97a(20) =1a(21) =1a(22) =237a(23) =3495a(24) =7943a(25) =3495a(26) =237a(27) =1a(28) =1a(29) =575

External references