Odd numbers in the triangle of Eulerian numbers.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =11a(7) =11a(8) =1a(9) =1a(10) =1a(11) =1a(12) =57a(13) =57a(14) =1a(15) =1a(16) =1191a(17) =1191a(18) =1a(19) =1a(20) =247a(21) =4293a(22) =15619a(23) =15619a(24) =4293a(25) =247a(26) =1a(27) =1a(28) =1a(29) =1