Number of integer compositions of n that have only one part or whose consecutive parts are indivisible and the last and first part are also indivisible.

A318726

Number of integer compositions of n that have only one part or whose consecutive parts are indivisible and the last and first part are also indivisible.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =5a(7) =3a(8) =8a(9) =13a(10) =12a(11) =23a(12) =27a(13) =56a(14) =64a(15) =100a(16) =150a(17) =216a(18) =325a(19) =459a(20) =700a(21) =1007a(22) =1493a(23) =2186a(24) =3203a(25) =4735a(26) =6929a(27) =10243a(28) =14952a(29) =22024

External references