a(n) is the sum over all partitions of n of the number of right angles that are not the largest right angle.

A330378

a(n) is the sum over all partitions of n of the number of right angles that are not the largest right angle.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =2a(5) =5a(6) =8a(7) =14a(8) =22a(9) =34a(10) =50a(11) =75a(12) =106a(13) =151a(14) =210a(15) =291a(16) =394a(17) =535a(18) =712a(19) =949a(20) =1246a(21) =1634a(22) =2118a(23) =2745a(24) =3520a(25) =4508a(26) =5728a(27) =7266a(28) =9152a(29) =11512

External references