Maths Sequencing

[pinkee]

Can anyone help me with the following sequence? I need to know what the missing numbers represented by the letters A-H are.

I, 3, 3, 5, 4, E, 3, 5, 5, F, 3, 6, 6, C, 8, 7, B, A, 8, G, 6, D, 9, 11, 10, 10, 9, 11, 11, 10, H

Thank you

[Gizmonster]

The sequence is the number of letters in the spelling of the numbers, starting from zero:

zero = 4 (I)
one = 3
two = 3
three = 5
four = 4
five = 4 (E)
six = 3
seven = 5
eight = 5
nine = 4 (F)
ten = 3
eleven = 6
twelve = 6
thirteen = 8 (C)
fourteen = 8
fifteen = 7
sixteen = 7 (B)
seventeen = 9 (A)
eighteen = 8
nineteen = 8 (G)
twenty = 6
twenty one = 9 (D)
twenty two = 9
twenty three = 11
twenty four = 10
twenty five = 10
twenty six = 9
twenty seven = 11
twenty eight = 11
twenty nine = 10
thirty = 6 (H)

[pinkee]

Thanks Gizmonster. That is so clever.

[jobjockey]

Nothing to do with me, but by jove
you're clever.

[IJKLM]

Try counting the number of letters in the ordinals
One = 3
Two = 3
Three = 5
Four = 4
Five = 4
etc

[IJKLM]

Sorry Gizmonster yours was not there when I did mine - and of course, I meant cardinals...

[jobjockey]

Beyond me, but where do the letters
come in?

[Cloverjo]

Jobjockey, the letters represent the numbers that pinkee needs to find to fit the sequence.