-2484

Appears in sequences

• a(n) = 2n(19-n).at n=46A182428
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 403", based on the 5-celled von Neumann neighborhood.at n=33A271810
• Fourier coefficients of the modular form (1-6*sqrt(-3)/t_{6a}) * (1/t_{6a}) * (1-12*sqrt(-3)/t_{6a})^(1/3) * F_{6a}^8.at n=5A341564
• Irregular triangle read by rows: T(n,k) = A344031(n,k)/2, n >= 1, 0 <= k <= 2*n-2.at n=21A344059