Adding a debugging printf to the C here:

void mt_init_seed( struct mt *m, uint32_t seed )
{
    int i;
    uint32_t *mt;

    mt = m->mt;
    mt[0] = seed & 0xffffffff;
    for ( i = 1; i < N; i++ ) {
        mt[i] = 1812433253 * (mt[i-1]^(mt[i-1]>>30)) + i;
        printf("init %d: %u\n", i, mt[i]);  // what we want
    }
    m->mti = N;
}

and running

$ perl -MMath::Random::MT -e "Math::Random::MT->new(1)" > out