Number of compositions of n into 7 ordered relatively prime parts.

Terms

a(0) =1a(1) =7a(2) =28a(3) =84a(4) =210a(5) =462a(6) =924a(7) =1715a(8) =3003a(9) =4998a(10) =8008a(11) =12348a(12) =18564a(13) =27048a(14) =38759a(15) =54054a(16) =74613a(17) =100478a(18) =134596a(19) =176176a(20) =230202a(21) =294294a(22) =376740a(23) =471933a(24) =593775a(25) =731276a(26) =905982a(27) =1099560a(28) =1344903a(29) =1610322