p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - 2 S - S^2.

Terms

a(0) =2a(1) =7a(2) =22a(3) =70a(4) =222a(5) =705a(6) =2238a(7) =7105a(8) =22556a(9) =71608a(10) =227332a(11) =721705a(12) =2291178a(13) =7273743a(14) =23091762a(15) =73308814a(16) =232731578a(17) =738846865a(18) =2345597854a(19) =7446508273a(20) =23640235416a(21) =75050038224a(22) =238259397096a(23) =756395887969