# A337053 (b-file synthesized from sequence entry) 0 1 1 1 2 0 3 1 4 1 5 4 6 81 7 81 8 2500 9 71289 10 170569 11 4752400 12 314388361 13 2553584089 14 12138750976 15 3868290439209 16 98777141491561 17 74627448683524 18 77548359598953721 19 6456459980629467081 20 96370747288471888164 21 738333256838429983201 22 526354651474052521626801