Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and every three consecutive elements having its maximum within 4 of its minimum.

A263702

Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and every three consecutive elements having its maximum within 4 of its minimum.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =288a(6) =456a(7) =768a(8) =1002a(9) =1759a(10) =3766a(11) =7984a(12) =15880a(13) =30712a(14) =60880a(15) =122308a(16) =248493a(17) =504104a(18) =1014076a(19) =2036337a(20) =4085860a(21) =8213550a(22) =16539563a(23) =33298322a(24) =67024922a(25) =134834240a(26) =271198708a(27) =545583481a(28) =1097665701a(29) =2208646386

External references