Number of one-sided prudent walks from (0,0) to (n,n), with 4+n east steps, 4 west steps and n north steps.
A189770
Number of one-sided prudent walks from (0,0) to (n,n), with 4+n east steps, 4 west steps and n north steps.
Terms
- a(0) =2a(1) =30a(2) =300a(3) =2450a(4) =17640a(5) =116424a(6) =720720a(7) =4247100a(8) =24066900a(9) =132100540a(10) =706137432a(11) =3691172940a(12) =18929092000a(13) =95477508000a(14) =474659611200
External references
- oeis: A189770