Number of permutations in S_n containing exactly one increasing subsequence of length 5.
A224248
Number of permutations in S_n containing exactly one increasing subsequence of length 5.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =20a(7) =270a(8) =3142a(9) =34291a(10) =364462a(11) =3844051a(12) =40632886a(13) =432715409a(14) =4655417038a(15) =50667480496a(16) =558143676522
External references
- oeis: A224248