Number of integer partitions of n that are not of length 2 and do not contain n/2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =5a(6) =6a(7) =12a(8) =14a(9) =26a(10) =31a(11) =51a(12) =61a(13) =95a(14) =114a(15) =169a(16) =202a(17) =289a(18) =347a(19) =481a(20) =576a(21) =782a(22) =936a(23) =1244a(24) =1487a(25) =1946a(26) =2323a(27) =2997a(28) =3570a(29) =4551