52828

Appears in sequences

• Number of unlabeled 4-ary cacti having n polygons.at n=8A052394
• a(n) = A192525(n)/2.at n=38A192526
• Number of nX2 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=12A201095
• Array read by antidiagonals: T(n,k) is the number of (planar) unlabeled k-ary cacti having n polygons.at n=74A303912
• a(n) = 836*2^n - 676.at n=6A305272
• Inverse Euler transform of the classical tribonacci numbers.at n=22A349977