Constant BABYBEAR_POSEIDON2_RC_32_EXTERNAL_INITIAL 

pub const BABYBEAR_POSEIDON2_RC_32_EXTERNAL_INITIAL: [[BabyBear; 32]; 4];

Round constants for width-32 Poseidon2 on BabyBear.

Generated by the Grain LFSR with parameters: field_type=1, alpha=7 (exp_flag=0), n=31, t=32, R_F=8, R_P=30

Generated by poseidon2/generate_constants.py --field babybear --width 32.

Layout: external_initial (4 rounds × 32 elements).