[math-fun] 2-digits sum loop

Hello, consider this « sequence » : 17, 9, 8, 17, 9, 8, 17, 9, 8, 17, 9, 8, ... ... it's property is that any n is the sum of the two digits immediately following n. ... the seq. is built on the repeated pattern : [17, 9, 8] Find another such seq. built on a different pattern. Best, É.