Number of permutations of [n] with both a fixed point and a succession.
A201452
Number of permutations of [n] with both a fixed point and a succession.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =1a(4) =8a(5) =37a(6) =248a(7) =1749a(8) =14284a(9) =130343a(10) =1318194a(11) =14630853a(12) =176881314a(13) =2313878809a(14) =32567413038a(15) =490762544907
External references
- oeis: A201452