每个0紧挨着0 4,每个1紧挨着1 3,每个2紧挨着2 1,每个3紧挨着3 1,每个4紧挨着4 1
表格开始
.1....1......1.........1...........1.............1................1
.1....1......9........17..........33............89..............249
.1....9.....33.......113.........593..........2435............10317
.1...17....113.......803........5855.........41459...........300943
.1...33....593......5855.......79051.......1041263.........13639968
.1...89...2435.....41459.....1041263......24799027........564930689
.1..249..10317....300943....13639968.....564930689......22225081365
.1..553..45615...2224023...178359981...13016997513.....916121380455
.1.1321.195093..16153497..2325301494..302413118055...37586117262267
.1.3361.841571.116797601.30421739045.7014256316261.1524500056348640
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