Number of permutations of [n] whose cycle maxima sum to 2n.
A368678
Number of permutations of [n] whose cycle maxima sum to 2n.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =2a(5) =10a(6) =41a(7) =260a(8) =1552a(9) =12818a(10) =101280a(11) =1021908a(12) =10154064a(13) =121656672a(14) =1447205472a(15) =20215013184a(16) =280271024640
External references
- oeis: A368678