Number of terms in polynomial sequence s(n) = (x*s(n-1)*s(n-4) + y*s(n-2)*s(n-3))/s(n-5), with s(k) = 1 for k = 0..4.

A333260

Number of terms in polynomial sequence s(n) = (x*s(n-1)*s(n-4) + y*s(n-2)*s(n-3))/s(n-5), with s(k) = 1 for k = 0..4.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =4a(8) =7a(9) =11a(10) =16a(11) =23a(12) =33a(13) =46a(14) =64a(15) =84a(16) =109a(17) =143a(18) =184a(19) =228a(20) =283a(21) =351a(22) =429a(23) =515a(24) =615a(25) =734a(26) =871a(27) =1017a(28) =1181a(29) =1376

External references