Number of compositions of n in which the minimal multiplicity of parts equals 3.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =0a(5) =0a(6) =21a(7) =35a(8) =91a(9) =105a(10) =211a(11) =221a(12) =464a(13) =441a(14) =740a(15) =2571a(16) =5457a(17) =14740a(18) =37990a(19) =89091a(20) =203487a(21) =416751a(22) =877183a(23) =1722277a(24) =3374384a(25) =6381902a(26) =12054327a(27) =22545335a(28) =42054605a(29) =78409434