Number of finite sets of compositions with all equal sums and total sum n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =9a(5) =16a(6) =38a(7) =64a(8) =156a(9) =260a(10) =632a(11) =1024a(12) =2601a(13) =4096a(14) =10208a(15) =16944a(16) =40966a(17) =65536a(18) =168672a(19) =262144a(20) =656980a(21) =1090240a(22) =2620928a(23) =4194304a(24) =10862100a(25) =16781584a(26) =41940992a(27) =69872384a(28) =168403448a(29) =268435456