Reflection of triangle in A008280 in vertical axis.

Terms

a(0) =1a(1) =1a(2) =0a(3) =0a(4) =1a(5) =1a(6) =2a(7) =2a(8) =1a(9) =0a(10) =0a(11) =2a(12) =4a(13) =5a(14) =5a(15) =16a(16) =16a(17) =14a(18) =10a(19) =5a(20) =0a(21) =0a(22) =16a(23) =32a(24) =46a(25) =56a(26) =61a(27) =61a(28) =272a(29) =272