The case S(-1,-2,3) of the family of self-convolutive recurrences studied by Martin and Kearney.

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =3a(4) =3a(5) =-21a(6) =27a(7) =27a(8) =-117a(9) =27a(10) =459a(11) =-837a(12) =-405a(13) =3483a(14) =-2997a(15) =-9477a(16) =25515a(17) =-1701a(18) =-91125a(19) =130491a(20) =165483a(21) =-732645a(22) =422091a(23) =2136699a(24) =-4546773a(25) =-1712421a(26) =19597707a(27) =-21237957a(28) =-43597845a(29) =140635035