Second differences of A074658, which counts the convex partitions of n.

A074660

Second differences of A074658, which counts the convex partitions of n.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =-1a(4) =2a(5) =0a(6) =-2a(7) =3a(8) =2a(9) =-4a(10) =3a(11) =2a(12) =-6a(13) =9a(14) =3a(15) =-13a(16) =6a(17) =12a(18) =-14a(19) =12a(20) =-1a(21) =-13a(22) =14a(23) =9a(24) =-14a(25) =8a(26) =4a(27) =-8a(28) =6a(29) =16

External references