112354

Appears in sequences

• Number of permutations of order n with the length of longest run equal to 4.at n=8A001252
• Triangle read by rows: number of permutations of 1..n by length of longest run.at n=33A010026
• a(n) = 2*a(n-1) - [(n+1)/3] for n>0 with a(0) = 1.at n=18A136169
• Triangle read by rows: number of permutations of 1..n by length l of longest run (n >= 1, 1 <= l <= n).at n=39A211318