-6760

Appears in sequences

• a(n) = 2*a(n-1) - a(n-2) - a(n-4) with a(0) = a(1) = 0, a(2) = 1, a(3) = 2.at n=25A014292
• Central coefficients of number triangle A185962.at n=12A185965
• G.f.: real part of 1/(1 - i*x - i*x^2) where i=sqrt(-1).at n=25A201837