The number of distinct positions on an infinite chessboard reachable by the (3,4)-leaper in <= n moves.

A297741

The number of distinct positions on an infinite chessboard reachable by the (3,4)-leaper in <= n moves.

Terms

    a(0) =1a(1) =9a(2) =41a(3) =129a(4) =321a(5) =681a(6) =1289a(7) =2121a(8) =3081a(9) =4121a(10) =5233a(11) =6445a(12) =7777a(13) =9233a(14) =10813a(15) =12517a(16) =14345a(17) =16297a(18) =18373a(19) =20573a(20) =22897a(21) =25345a(22) =27917a(23) =30613a(24) =33433a(25) =36377a(26) =39445a(27) =42637a(28) =45953a(29) =49393

External references