No             n          digits         Searcher 
1	       18	        3	
2	       26	        3	
3	       32	        4	
4	       48	        6	
5	       50	        7	
6	       60	        8	
7	       74	       10	
8	       74	       10	
9	       78	       11	
10	       84	       12	
11	      126	       19	
12	      128	       19	
13	      288	       50	
14	      300	       53	
15	      342	       62	
16	      344	       62	
17	      368	       67	
18	      378	       69	
19	      546	      107	
20	      632	      127	
21	    1,122	      247	
22	    1,194	      265	
23	    1,542	      356	
24	    1,872	      445	
25	    1,970	      472	
26	    2,936	      745	
27	    3,642	      951	
28	    4,230	    1,128	
29	    4,688	    1,267	
30	    5,748	    1,595	

No             n          digits         Searcher 
31	    9,576	    2,833	
32	   10,206	    3,043	
33	   17,670	    5,617	
34	   19,494	    6,266	
35	   19,722	    6,348	
36	   21,242	    6,894	
37	   24,192	    7,964	
38	   39,506	   13,706	 Ken Davis 06/2003
39	   53,202	   19,030	 Ian Brown 10/2003
40	   53,676	   19,216	 Ian Brown 10/2003
41	   64,466	   23,506	 Ian Brown 10/2003
42	   80,138	   29,851	 Ian Brown 10/2003
43	   87,386	   32,825	 Ian Brown 10/2003
44	   92,526	   34,947	 Ian Brown 10/2003
45	   98,258	   37,325	 Ian Brown 10/2003
46	  108,096	   41,435	 Steven Harvey p119 11/2003
47	  209,898	   85,497	 Richard Kapek 08/2010
48	  220,698	   90,296	 Richard Kapek 11/2010
49	  387,564	  166,463	 MO 08/2014
50	  444,930	  193,325	 MO 04/2021