225750

Appears in sequences

• Erroneous version of A178674.at n=10A119626
• Number of ways to place 2 nonattacking knights on an n X n board.at n=25A172132
• Numbers k such that k-17, k-1, k+1 and k+17 are consecutive primes.at n=7A262176
• Triangular array T(n, k) read by rows: polynomials for the series expansion of the iterated function F^{t}(x) = Sum_{n>=0} (1/x)^(2*n-1)*P_n(t)/n! with F^{1}(x) = (x + sqrt(x^2 + 4))/2 and F^{2}(x) = F^{1}(F^{1}(x)). Row n of the triangle give the coefficients of the polynomial P_n(t).at n=32A390822