Number of permutations of 1..n+4 with the number moved left exceeding the number moved right by n.

A179571

Number of permutations of 1..n+4 with the number moved left exceeding the number moved right by n.

Terms

    a(0) =31a(1) =66a(2) =134a(3) =267a(4) =529a(5) =1048a(6) =2080a(7) =4137a(8) =8243a(9) =16446a(10) =32842a(11) =65623a(12) =131173a(13) =262260a(14) =524420a(15) =1048725a(16) =2097319a(17) =4194490a(18) =8388814a(19) =16777443a(20) =33554681a(21) =67109136a(22) =134218024a(23) =268435777a(24) =536871259a(25) =1073742198a(26) =2147484050a(27) =4294967727

External references