3663 luni-solar year cycle

The 3663 luni-solar year cycle is listed on Karl P's

http://www.the-light.com/cal/Lunisolar33.html

Many of the values for these datums are divisible by 17. It tells us that a good estimation for a term-month relationship is,

3663 terms = 2665 months

1 term = 2665 / 3663 months = 8 / 11 months + 1 / 3663 months

and noting that 1 / 11 = 333 / 3663 tells us that the elevenths part is incremented every 333 terms ( about 19.6 years ).

So I'll set the initial value of the Brown Lunation Number "L" for the first term

L = 369 & 1522 / 3663 months

and create the formula

L = (  2665*T + 1350504 )/ 3663

to give the Lunation Number for all terms thereafter