2−p,p,2−α,α Binomial coefficients are ⇒nCr,nCr+1,nCr+2,nCr+3 respectively ⇒nCr+nCr+1=2 n+1Cr+1=2.......(1) Also nCr+2+nCr+3=2 ⇒n+1Cr+3=2.......(2) From (1) and (2) n+1Cr+1=n+1Cr+3 2r+4=n+1 n=2r+3 2r+4Cr+1=2 Data Inconsistent