Number of permutations p of [n] such that 0p has a nonincreasing down-jump sequence.
A288912
Number of permutations p of [n] such that 0p has a nonincreasing down-jump sequence.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =23a(5) =106a(6) =558a(7) =3284a(8) =21200a(9) =148539a(10) =1119273a(11) =9013112a(12) =77106652a(13) =697811164a(14) =6652604804a(15) =66593158893a(16) =697756930786
External references
- oeis: A288912