Triangle read by rows: last survivors of Josephus elimination process.

Terms

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