Eigensequence of triangle A168313.

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =13a(5) =29a(6) =71a(7) =165a(8) =401a(9) =957a(10) =2315a(11) =5561a(12) =13437a(13) =32377a(14) =78191a(15) =188617a(16) =455425a(17) =1099137a(18) =2653699a(19) =6405733a(20) =15465165a(21) =37334149a(22) =90133463a(23) =217596445a(24) =525326353a(25) =1268238029a(26) =3061802411a(27) =7391815977a(28) =17845434365a(29) =43082619953