Sum of absolute values of real and imaginary parts of the coefficients in the expansion of 1 / (1 - x - I*x^2), where I^2=-1.

A218137

Sum of absolute values of real and imaginary parts of the coefficients in the expansion of 1 / (1 - x - I*x^2), where I^2=-1.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =3a(5) =6a(6) =9a(7) =11a(8) =16a(9) =27a(10) =37a(11) =40a(12) =77a(13) =117a(14) =144a(15) =207a(16) =351a(17) =482a(18) =523a(19) =999a(20) =1522a(21) =1879a(22) =2681a(23) =4560a(24) =6279a(25) =6839a(26) =12960a(27) =19799a(28) =24517a(29) =34722

External references