Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 4 of its minimum.
A263696
Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 4 of its minimum.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =120a(6) =288a(7) =456a(8) =768a(9) =1508a(10) =3434a(11) =7560a(12) =16024a(13) =31872a(14) =61704a(15) =122464a(16) =246296a(17) =500506a(18) =1015010a(19) =2041372a(20) =4098824a(21) =8224718a(22) =16535378a(23) =33298104a(24) =67036986a(25) =134932118a(26) =271438490a(27) =545959366a(28) =1098340012a(29) =2209778140
External references
- oeis: A263696