When the 'Summarize preceding term' sequence gets into a cycle.

Terms

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