166344

Appears in sequences

• a(n) = T(n,n+2), array T as in A050143.at n=8A050151
• a(n) = n*(2*n^8 + 84*n^6 + 798*n^4 + 1636*n^2 + 315)/2835.at n=8A099196
• Gaussian column reduction of Hankel matrix for central Delannoy numbers.at n=37A118384
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+239)^2 = y^2.at n=12A204765
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 2/(1 - 2*k*x + ((k-2)*x)^2 + (1 - k*x) * sqrt(1 - 2*k*x + ((k-2)*x)^2)).at n=62A331791