Coefficient of x in the reduction by (x^2 -> x+1) of the polynomial F(n+4)*x^n, where F = A000045 (Fibonacci sequence).

A192920

Coefficient of x in the reduction by (x^2 -> x+1) of the polynomial F(n+4)*x^n, where F = A000045 (Fibonacci sequence).

Terms

    a(0) =0a(1) =5a(2) =8a(3) =26a(4) =63a(5) =170a(6) =440a(7) =1157a(8) =3024a(9) =7922a(10) =20735a(11) =54290a(12) =142128a(13) =372101a(14) =974168a(15) =2550410a(16) =6677055a(17) =17480762a(18) =45765224a(19) =119814917a(20) =313679520a(21) =821223650a(22) =2149991423a(23) =5628750626a(24) =14736260448a(25) =38580030725a(26) =101003831720a(27) =264431464442a(28) =692290561599

External references