59201

Appears in sequences

• Triangle read by rows: T(n,k) is the number of ways of building a building of height k using n 2 X 4 LEGO blocks, counted up to symmetry (for 2 <= k <= n).at n=4A112390
• Number of lattice paths from (0,0) to (n,n) using steps (1,1), (0,2), (2,0), (0,3), (3,0).at n=10A192371
• y-values in the solution to 10*x^2-9 = y^2.at n=8A198943
• Number of length 4+2 0..n arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero.at n=9A250323
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 123", based on the 5-celled von Neumann neighborhood.at n=7A270211
• Number of integer partitions of n whose odd parts are relatively prime.at n=43A366850