Triangle A106534 with reversed rows.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =5a(6) =5a(7) =7a(8) =10a(9) =15a(10) =14a(11) =19a(12) =26a(13) =36a(14) =51a(15) =42a(16) =56a(17) =75a(18) =101a(19) =137a(20) =188a(21) =132a(22) =174a(23) =230a(24) =305a(25) =406a(26) =543a(27) =731a(28) =429a(29) =561