Nonzero elements in Klee's identity Sum[(-1)^k binomial[n,k]binomial[n+k,m],{k,0,n}] == (-1)^n binomial[n,m-n].

A092865

Nonzero elements in Klee's identity Sum[(-1)^k binomial[n,k]binomial[n+k,m],{k,0,n}] == (-1)^n binomial[n,m-n].

Terms

    a(0) =1a(1) =-1a(2) =-1a(3) =1a(4) =2a(5) =-1a(6) =1a(7) =-3a(8) =1a(9) =-3a(10) =4a(11) =-1a(12) =-1a(13) =6a(14) =-5a(15) =1a(16) =4a(17) =-10a(18) =6a(19) =-1a(20) =1a(21) =-10a(22) =15a(23) =-7a(24) =1a(25) =-5a(26) =20a(27) =-21a(28) =8a(29) =-1

External references