Constant MAX_LABEL 

pub const MAX_LABEL: i32 = _; // 260i32

The largest |n| of an integer special-function label (Kambe orders, Wigner labels).

Lattice sums of degree l up to MAX_DEGREE use Kambe orders n with |n| up to 2 l + 1, and their derivatives up to 2 l + 3; the reciprocal terms of 1D spherical sums reach both. Translations use Wigner labels up to l1 + l2 = 2 MAX_DEGREE. The bound adds one order of margin.