Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most eight elements.

A276724

Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most eight elements.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =52a(6) =203a(7) =877a(8) =4140a(9) =17007a(10) =64077a(11) =231180a(12) =821132a(13) =2918753a(14) =10483154a(15) =38264066a(16) =142423894a(17) =533308705a(18) =1995314365a(19) =7437442700a(20) =27604521795a(21) =102095937121a(22) =376790770192

External references