Number of degree n polynomials f with all nonzero coefficients equal to 1 such that f(k) is divisible by 4 for all integers k.

A309846

Number of degree n polynomials f with all nonzero coefficients equal to 1 such that f(k) is divisible by 4 for all integers k.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =2a(6) =6a(7) =10a(8) =20a(9) =32a(10) =64a(11) =120a(12) =256a(13) =512a(14) =1056a(15) =2080a(16) =4160a(17) =8192a(18) =16384a(19) =32640a(20) =65536a(21) =131072a(22) =262656a(23) =524800a(24) =1049600a(25) =2097152a(26) =4194304a(27) =8386560a(28) =16777216a(29) =33554432

External references