Triangle read by rows: number of permutations of 1..n by length l of longest run (n >= 1, 1 <= l <= n).
A211318
Triangle read by rows: number of permutations of 1..n by length l of longest run (n >= 1, 1 <= l <= n).
Terms
- a(0) =1a(1) =0a(2) =2a(3) =0a(4) =4a(5) =2a(6) =0a(7) =10a(8) =12a(9) =2a(10) =0a(11) =32a(12) =70a(13) =16a(14) =2a(15) =0a(16) =122a(17) =442a(18) =134a(19) =20a(20) =2a(21) =0a(22) =544a(23) =3108a(24) =1164a(25) =198a(26) =24a(27) =2a(28) =0a(29) =2770
External references
- oeis: A211318