50144

Appears in sequences

• Numerators of continued fraction convergents to sqrt(750).at n=10A042444
• Triangle read by rows: T(n,k) = number of Schroeder (or royal) n-paths (A006318) containing k returns to the diagonal y=x. (A northeast step lying on y=x contributes a return.)at n=37A108891
• T(n,k) is the number of order-decreasing and order-preserving partial transformations (of an n-chain) of waist k (waist(alpha) = max(Im(alpha))).at n=53A145035
• a(n) = 49*n^2 - n.at n=31A157923
• a(n) = 196*n^2 - 2*n.at n=15A158224
• a(n) = 1024*n^2 - 32.at n=6A158683
• Triangle T(n,k), read by rows, given by [0,1,2,1,2,1,2,1,2,1,2,...] DELTA [2,0,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.at n=47A172040
• Numbers up to 10^n with an odd number of prime factors, or negative Liouville function.at n=5A212819
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8.at n=28A252615
• Number of (1+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8.at n=7A252616