Calculate vacation eligibility dates in a certain year

Hello Everyone,

Our vacation plan is as follows. DOH = Date of Hire

DOH+110, DOH+220, DOH+365, DOH+475, DOH+585, DOH+730 etc....

means 1st vacation 110 days after DOH, 2nd after DOH+110+110, 3rd after DOH+110+110+145, 4th one after DOH+110+110+145+110 etc so basically 3 times in 365 days.

My question how can I calculate the vacation eligibility dates in a specific year & it's position number?

eg: if i want to know the dates in 2012 1st one is 4/19/2012, 2nd 8/7/2012, 3rd one is on 12/30/2012

I got this to work with helper cells.

A1 = DOH

B2:B30 to down, 110, 110, 145, 110, 110, 145, 110, 110, 145 etc...the in A2:A30 to down =A1+B2

E1 is the date 1/1/2012

1st vacation in D3 =INDEX(A2:A30,MATCH(E1,A2:A30)+(LOOKUP(E1,A2:A30)<E1))
2nd n D4: =INDEX(A$2:A$30,MATCH(D3,A$2:A$30,0)+1)
3rd in D5 : =INDEX(A$2:A$30,MATCH(D4,A$2:A$30,0)+1)

And it's psition number is MATCH dates in A2:A30, which 22, 23, 24 respectively.

How can I do this wihout helper cells?

Thank you fr your time

Raj