Function adams_one_line 

pub fn adams_one_line(t: usize) -> usize

dim Ext^{1,t}_𝒜(Z/2, Z/2) — the first line of the Adams E₂ page = the indecomposables of the Steenrod algebra in degree t. Equals dim 𝒜_t − dim(𝒜⁺·𝒜⁺)_t. By Milnor it is 1 exactly when t is a power of 2 (the h_i = Sq^{2ⁱ}), and 0 otherwise.