Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks are <= eight.
A287258
Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks are <= eight.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =52a(6) =203a(7) =877a(8) =4140a(9) =21147a(10) =115974a(11) =678310a(12) =4205230a(13) =27497463a(14) =188884702a(15) =1358500111a(16) =10201272170a(17) =79783911418a(18) =648489059992
External references
- oeis: A287258