User blog comment:PsiCubed2/My Letter Notation/@comment-80.98.179.160-20171107122831

Ix is HH...HH(frac(x)) with int(x) Hs.

Jx is II...II(frac(x)) with int(x) Is.

Kx is JJ...JJ(frac(x)) with int(x) Js.

Lx is KK...KK(frac(x)) with int(x) Ks.

Mx is LL...LL(frac(x)) with int(x) Ls.

etc.

Zx is YY...YY(frac(x)) with int(x) Ys.

Ax is ZZ...ZZ(frac(x)) with int(x) Zs.

And Dx is CC...CC(frac(x)) with int(x) Ds.