Number of non-unimodal compositions of n into distinct terms.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =2a(7) =2a(8) =4a(9) =6a(10) =24a(11) =26a(12) =46a(13) =64a(14) =100a(15) =224a(16) =276a(17) =416a(18) =590a(19) =850a(20) =1144a(21) =2214a(22) =2644a(23) =3938a(24) =5282a(25) =7504a(26) =9776a(27) =13704a(28) =21984a(29) =27632