Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k UHU configurations, where U=(0,1), H(1,0); (n>=2, k>=0).

A273896

Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k UHU configurations, where U=(0,1), H(1,0); (n>=2, k>=0).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =1a(4) =9a(5) =4a(6) =22a(7) =12a(8) =1a(9) =56a(10) =35a(11) =6a(12) =146a(13) =104a(14) =24a(15) =1a(16) =388a(17) =312a(18) =86a(19) =8a(20) =1048a(21) =938a(22) =300a(23) =40a(24) =1a(25) =2869a(26) =2824a(27) =1032a(28) =170a(29) =10

External references