Number of distinct odd values of the (n-1)-st difference of permutations of 1..n.
A174104
Number of distinct odd values of the (n-1)-st difference of permutations of 1..n.
Terms
- a(0) =2a(1) =2a(2) =0a(3) =6a(4) =58a(5) =22a(6) =0a(7) =272a(8) =1882a(9) =386a(10) =9116a(11) =1586a(12) =44424a(13) =94474a(14) =0
External references
- oeis: A174104