On 2009.03.16, at 08:39 , Palmen, KEV (Karl) wrote:
I reckon that the leap week years of Irv’s 293-year cycle using K=146, which makes it into a Helios cycle are...
Irv replies: You can "reckon" that, and you can also simply get the new beta version of Kalendis to report the symmetrical list of Sym454 leap years. The symmetrical subcycle grouping is given at the top of the report, and the year number within the cycle is the left-most column in the list below.
-- Irv Bromberg, Toronto, Canada