Number of anagram compositions of 2n that can be formed from the compositions of n.

A263897

Number of anagram compositions of 2n that can be formed from the compositions of n.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =16a(5) =44a(6) =134a(7) =414a(8) =1290a(9) =4102a(10) =13306a(11) =43718a(12) =145176a(13) =487384a(14) =1651154a(15) =5636702a(16) =19381392a(17) =67074420a(18) =233483430a(19) =817106622a(20) =2873589060a(21) =10151255976a(22) =36009769278a(23) =128231072994a(24) =458268615966

External references