A Moessner triangle using (1, 2, 1, 2, 1, 2, ...).

Terms

a(0) =1a(1) =2a(2) =1a(3) =4a(4) =5a(5) =2a(6) =10a(7) =18a(8) =9a(9) =2a(10) =38a(11) =78a(12) =53a(13) =15a(14) =1a(15) =186a(16) =422a(17) =344a(18) =129a(19) =23a(20) =1a(21) =1106a(22) =2704a(23) =2484a(24) =1123a(25) =268a(26) =32a(27) =2a(28) =7718a(29) =19998