Number of integer compositions of n with all distinct even-indexed parts and all distinct odd-indexed parts.

A351018

Number of integer compositions of n with all distinct even-indexed parts and all distinct odd-indexed parts.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =9a(6) =18a(7) =27a(8) =46a(9) =77a(10) =122a(11) =191a(12) =326a(13) =497a(14) =786a(15) =1207a(16) =1942a(17) =2905a(18) =4498a(19) =6703a(20) =10574a(21) =15597a(22) =23754a(23) =35043a(24) =52422a(25) =78369a(26) =115522a(27) =169499a(28) =248150a(29) =360521

External references