-2588

Appears in sequences

• a(n) = -2*n^2 + 12*n - 14.at n=38A147973
• Convolution square of A285349.at n=18A285350
• G.f.: Sum_{n>=0} x^n * (x^n + i)^n / (1 + i*x^(n+1))^(n+1), where i^2 = -1.at n=51A323675