Somos's sequence {b(3,n)} defined in comment in A078495: a(0)=a(1)=...=a(8)=1; for n>=9, a(n)=(a(n-1)*a(n-8)+a(n-4)*a(n-5))/a(n-9).

A268199

Somos's sequence {b(3,n)} defined in comment in A078495: a(0)=a(1)=...=a(8)=1; for n>=9, a(n)=(a(n-1)*a(n-8)+a(n-4)*a(n-5))/a(n-9).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =2a(10) =3a(11) =4a(12) =5a(13) =7a(14) =13a(15) =25a(16) =45a(17) =125a(18) =233a(19) =419a(20) =805a(21) =2252a(22) =8343a(23) =23554a(24) =55889a(25) =195533a(26) =514781a(27) =1769117a(28) =6540689a(29) =31873013

External references