Odd elements in the 5-Pascal triangle A028313.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =1a(8) =1a(9) =7a(10) =7a(11) =1a(12) =1a(13) =19a(14) =19a(15) =1a(16) =1a(17) =9a(18) =27a(19) =27a(20) =9a(21) =1a(22) =1a(23) =65a(24) =65a(25) =1a(26) =1a(27) =11a(28) =101a(29) =101