Array read by antidiagonals: T(m,n) is the number of (non-null) connected induced subgraphs in the rook graph K_m X K_n.

A360873

Array read by antidiagonals: T(m,n) is the number of (non-null) connected induced subgraphs in the rook graph K_m X K_n.

Terms

    a(0) =1a(1) =3a(2) =3a(3) =7a(4) =13a(5) =7a(6) =15a(7) =51a(8) =51a(9) =15a(10) =31a(11) =205a(12) =397a(13) =205a(14) =31a(15) =63a(16) =843a(17) =3303a(18) =3303a(19) =843a(20) =63a(21) =127a(22) =3493a(23) =27877a(24) =55933a(25) =27877a(26) =3493a(27) =127a(28) =255a(29) =14451

External references