Number of strict compositions of n with alternating parts strictly decreasing.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =5a(6) =8a(7) =10a(8) =13a(9) =18a(10) =27a(11) =32a(12) =44a(13) =55a(14) =73a(15) =97a(16) =121a(17) =151a(18) =194a(19) =240a(20) =299a(21) =384a(22) =465a(23) =576a(24) =706a(25) =869a(26) =1051a(27) =1293a(28) =1572a(29) =1896