The current Judaic calendar allows for three types of year lengths:
- Chaser ("missing") - 353 days
- Kesidra ("in order") - 354 days
- Shalem ("full") - 355 days
(Add 30 to each of the above for leap years.)
Is there a set of rules that explain the sequence / possibilities of the year types? For example, I noticed that this year, 5779 is a leap year / shaleim and 5780 will be a non-leap year shaleim . Offhand, I don't recall two maleh years concecutively, and I assume that this can occur only if one is a leap year and the other is not. (I.e., you wouldn't see two consecutive non-leap shleimim.)
I gather that the sequence depends mainly on the day of week that Rosh Hashanna begins as there are a limited number of kviyot allowed for each possible weekday. But, I haven't been able to locate something that explains the possible sequence of the year types.