Inverse Moebius transform of A001405 (binomial(n, floor(n/2))).

Terms

a(0) =1a(1) =3a(2) =4a(3) =9a(4) =11a(5) =26a(6) =36a(7) =79a(8) =130a(9) =265a(10) =463a(11) =956a(12) =1717a(13) =3470a(14) =6449a(15) =12949a(16) =24311a(17) =48772a(18) =92379a(19) =185027a(20) =352755a(21) =705897a(22) =1352079a(23) =2705182a(24) =5200311a(25) =10402319a(26) =20058430a(27) =40120076a(28) =77558761a(29) =155124243