log-log axes scroll to zoom drag to pan click witness for Dubner's Steps
· cloud point f = 6n ± c ± d (c,d divisors of n, n = cd) · adjacent to witness (f±1 = w) — twin prime witness w — false witness (one prime only) - - thread c=C (hover cloud) ◇ BC band [w/2, 2w] (hover witness) - - normal to thread (hover) ⌐ Dubner's Steps (ancestry to 1) — reference line f = 6n