Triangular numbers that in base 2 have the same number of 0's and 1's.

Terms

a(0) =10a(1) =153a(2) =210a(3) =595a(4) =666a(5) =820a(6) =2278a(7) =2701a(8) =9045a(9) =9870a(10) =10585a(11) =11476a(12) =12403a(13) =13366a(14) =13861a(15) =14365a(16) =34191a(17) =34716a(18) =35245a(19) =36046a(20) =37675a(21) =37950a(22) =39340a(23) =39621a(24) =40470a(25) =41905a(26) =42195a(27) =42778a(28) =43365a(29) =44551