Number of permutations of {1..n} which contain 3 consecutive terms in increasing order.
A065429
Number of permutations of {1..n} which contain 3 consecutive terms in increasing order.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =7a(4) =50a(5) =371a(6) =3023a(7) =26962a(8) =263503a(9) =2806759a(10) =32439638a(11) =404794391a(12) =5429249279a(13) =77941628854
External references
- oeis: A065429