Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having width k (n>=2, k>=1).

A271942

Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having width k (n>=2, k>=1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =5a(8) =6a(9) =1a(10) =1a(11) =7a(12) =16a(13) =10a(14) =1a(15) =1a(16) =9a(17) =31a(18) =40a(19) =15a(20) =1a(21) =1a(22) =11a(23) =51a(24) =105a(25) =85a(26) =21a(27) =1a(28) =1a(29) =13

External references