318330

Appears in sequences

• Number of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>3*y*z.at n=30A211922
• a(n) = 1*2*3*4 - 5*6*7*8 + 9*10*11*12 - 13*14*15*16 + ... - (up to n).at n=29A319544