443718

Appears in sequences

• a(n) = ( (9 + sqrt(6))^n - (9 - sqrt(6))^n )/(2*sqrt(6)).at n=5A154241
• Number T(n,k) of permutations of [n] with exactly k occurrences of the consecutive step pattern up, down, down; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-1)/3)), read by rows.at n=26A242819
• Number of permutations of [n] with exactly three occurrences of the consecutive step pattern up, down, down.at n=1A246248