-4376

Appears in sequences

• Expansion of sqrt(1 - 2*x - 3*x^2) in powers of x.at n=12A167022
• Expansion of x + sqrt(1-2x-3x^2).at n=12A168058
• First term of n-th difference sequence of (floor(k*r)), r = sqrt(7), k >= 0.at n=16A325672
• T(j,k) are the numerators s in the representation R = s/t + (2/Pi)*u/v of the resistance between two nodes separated by the distance vector (j,k) in an infinite square lattice of one-ohm resistors, where T(j,k), j >= 0, 0 <= k <= j, is a triangle read by rows.at n=29A355565