Number of compositions of n minus the number of overpartitions of n.

Terms

a(0) =0a(1) =-1a(2) =-2a(3) =-4a(4) =-6a(5) =-8a(6) =-8a(7) =0a(8) =28a(9) =102a(10) =280a(11) =680a(12) =1544a(13) =3368a(14) =7152a(15) =14912a(16) =30706a(17) =62672a(18) =127124a(19) =256744a(20) =516952a(21) =1038672a(22) =2083864a(23) =4176576a(24) =8365080a(25) =16746150a(26) =33513608a(27) =67055456a(28) =134148160a(29) =268345208