21 Jul
2008
21 Jul
'08
9:34 a.m.
I am trying to generate the following list: 2, 3, 5 -- and then alternating (+2) resp (+4) -- 7, 11, 13, 17, 19, 23 I came up with the following solution 2:3:unfoldr (\(a,b) -> Just (a,(a+b, if b == 2 then 4 else 2))) (5,2) Are there easier ways to generate the desired list? Dirk