seed 23: 200 runs, 5 bursts of B^3, gaps 0..6, K <= 3: 2 halts, 0 more with a non-E answer
{"thr": "RP", "e": 34, "prog": "B3 A4 B3 B3 A6 B3 A4 B3 A6 A2600", "halt": "HALT visit 2 of B3 pos 643", "outs": [{"E": 3}, {"E": 4}, {"E": 3}, {"E": 3}, {"E": 6}, {"E": 3}, {"E": 4}]}
{"thr": "Q", "e": 55, "prog": "B3 A2 B3 A2 B3 A5 B3 A2 B3 A3 A2600", "halt": "HALT visit 2 of B3 pos 629", "outs": [{"E": 3}, {"E": 2}, {"E": 3}, {"E": 2}, {"E": 3}, {"E": 5}, {"E": 3}, {"E": 2}]}
seed 22: 200 runs, 5 bursts of B^2, gaps 0..6, K <= 3: 1 halts, 0 more with a non-E answer
{"thr": "QQQP", "e": 49, "prog": "B2 A1 B2 A6 B2 A5 B2 A3 B2 A1 A2600", "halt": "HALT visit 4 of A5 pos 636", "outs": [{"E": 2}, {"E": 1}, {"E": 2}, {"E": 6}, {"E": 2}]}
seed 24: 200 runs, 5 bursts of B^4, gaps 0..6, K <= 3: 0 halts, 0 more with a non-E answer